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Windows 11 Product Key Not Working Error: 0xc004f050 [Fixed] Follow these methods to activate your Windows license




Getting an activation error prevents you from using your product key on your Windows computer.

If your computer has undergone significant hardware changes or the activation server is busy, this could happen.

In this guide, we will talk about how to eliminate this error and activate Windows.



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If you are trying to upgrade your Windows Home license to Pro Edition but encountered the product key not working, error: 0xc004f050, then you are not alone. Unfortunately, this error often occurs when upgrading Windows 11 Home to Pro.

This guide will discuss all the potential reasons and available fixes to get rid of the Windows 11 Pro key not working.

Why is my Windows 11 activation key not working?

There might be various reasons for Windows 11 key not activating, some of them are listed below: 

Incorrect key – It might be possible that you mistyped the product key. Please carefully note the product key on a notepad and copy-paste it to the enter product key field to avoid any error.

Server Issues – Sometimes, while upgrading Windows, you might get this error if the activation server is busy. Please wait for a couple of hours and try again. 

Key is of a different edition – If you have a Windows Home license key and are using it to activate the Windows Pro version, it will not work, hence the error.

Major hardware changes – If you have made significant changes to hardware, such as the motherboard or GPU, you might face the issue.

What can I do to fix Windows 11 product key not working?

Before moving ahead to the detailed troubleshooting steps, try these quick fixes to resolve Windows 11 activation key not working:

Wait a day or two, and then try upgrading Windows 11 Home to Pro.

Run Windows Activation Troubleshooter.

Restart your PC and try to activate your Windows license.

1. Use a generic key


Please take a backup of personal files and perform a clean install of Windows Pro using a bootable USB drive. 

2. Use Command Prompt to activate Windows 

Press the Windows key, type CMD and Run as administrator.

Copy and paste the following command, but replace XXXX with your product key and press Enter:  slmgr.vbs /ipk XXXXX - XXXXX - XXXXX - XXXXX - XXXXX

Restart your PC.

3. Use the Telephone system to activate Windows  Can I activate Windows 11 without a key?

Yes, you can activate Windows 11 without a key if you have a digital license. Also, please ensure the digital entitlement added to your user account should be linked to your Microsoft account.

How do I find my Windows 11 activation key?

You can find the activation key on your registered email address if you have purchased a copy from Microsoft Store. However, if your license key came with your computer, you must have a digital license linked to your Microsoft account. You can get your hands on your product key via Command Prompt.

Still experiencing issues?

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0Xc004F050: How To Fix This Activation Error On Windows 11

0xc004f050: How to Fix This Activation Error on Windows 11




If you have been facing the Windows 11 activation error 0xc004f050, it would prevent you from activating your copy of the OS.

To fix the error, check if the servers are up, run the Windows Activation troubleshooter,  activate via Command Prompt, amongst other methods listed here.

Also, find out the other Windows activation errors, and the best fixes for them. 



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An activation error can be tricky, since it outright claims a perfectly valid license key to be invalid, and prevents you from activating the installed version of Windows. One such is the 0xc004f050 activation error in Windows 11 which most often happens when users try to upgrade from Windows 11 Home to Pro edition.

In this case, most users go ahead and purchase another licensed version of the OS. But, that shouldn’t be your first approach, rather there are a few quick troubleshooting methods that could get things up and running.

And in the following sections, we will walk you through both the underlying causes and the most effective fixes for the Windows 11 activation error 0xc004f050.

Why am I encountering the Windows 11 activation error 0xc004f050?

There could be several reasons behind you encountering this activation error in Windows 11. But most often than not, it’s an incorrect key or issues with the server to be blamed.

Also, if the key with you is for a different edition than the one installed on your PC, you would receive an error. For instance, you can’t use a Windows 11 Home key to activate Windows 11 Pro edition.

Besides, if you clean installed Windows 11 using a USB, it too could lead to issues and the key for the previous iteration might not work.

The activation error can also be encountered if you have made major changes to the hardware, such as upgrading the motherboard.

Now that you have a basic understanding of the underlying causes, let’s head to the fixes for Windows 11 activation error 0xc004f050.

How do I fix the Windows 11 activation error 0xc004f050? 1. Check if the Windows 11 license key is correct

As already mentioned earlier, an incorrect license key is most likely to cause the Windows 11 activation error 0xc004f050. So, verify that the key you are entering matches the one provided to you.

Enter correct key Windows license key

Once done, check if the error is fixed. In case it persists, head to the next method.

2. Wait for a day or two and then try activating Windows 11

It’s also likely that the Microsoft servers are down or undergoing maintenance, and as a result, you are encountering the Windows 11 activation error 0xc004f050.

In this case, it’s recommended that you keep trying for a day or two and check if you are able to activate Windows 11. If the error doesn’t seem to go away after two days, the issue lies elsewhere and the other fixes here should work.

3. Use a dedicated software

The methods listed here might be tricky for many and would consume a lot of time and effort, first to identify the problem and subsequently eliminate it. But, you can use third-party software to get things up and running in no time.

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4. Run the Windows Activation troubleshooter 5. Activate Windows 11 using Command Prompt

The command will try to activate the OS and eliminate the Windows 11 activation error 0xc004f050.

If you did a clean install of Windows 11 using a bootable USB, it could lead to issues while activating the OS.

If that’s the case, the simplest fix is to reinstall Windows 10, check for an update for Windows 11, and download it. This way, you wouldn’t have to manually activate the OS, and it would be done automatically.

Since the latest iteration is a free upgrade for those running Windows 10 on compatible systems, taking the Windows Update route should eliminate the Windows 11 activation error 0xc004f050.

What are the other activation errors that I may encounter in Windows 11?

Apart from the one we discussed here, there are a bunch of other activation errors that you might encounter in the latest iteration. And, a proper understanding of each is imperative for the best experience.

But before you proceed with the individual error codes, learn what to do when you can’t activate Windows 11.

These are all the ways you can fix the Windows 11 activation error 0xc004f050, along with other ones in the latest iteration.

In case you are encountering 0xc004f050 error code in Windows 10, the fixes would be quite similar to the ones listed here, though the one for the reinstall process would be different. Also, find out what to do if you can’t activate Windows 10 as it’s time to solve this problem for good.

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Outlook Not Working After Windows 11 Update

When I installed the Windows 11 2023 Update, I found that my Outlook client was not working or opening, and I received multiple errors. If you gave a similar issue, try the following suggestions to fix the issue.

Multiple Outlook Errors after Windows 11 update

The following errors occurred for me one by one while trying to use Outlook on Windows 11 after updating it to the latest version.

Outlook not working after Windows 11 Update

If Outlook is not working or opening after Windows Update in Windows 11/10, then one of these suggestions is sure to help you:

Restart your PC

Start Outlook in Safe mode and Delete the profile

Repair Office

Let’s get into the details of each method and fix the issue.

1] Restart your PC

If you are facing multiple Outlook errors one by one after updating to Windows 11 latest version or Windows 11 2023 version, the first and obvious fix you need to try is restarting your PC. This will close all unwanted programs and clear resources.

You might be able to fix it easily with a restart as it is one of the generic solutions that fix most of the issues on Windows PC. If the issues have not been fixed even after restarting your PC, try the below solutions.

2] Start Outlook in Safe mode and Delete the profile

The other way to fix the multiple errors on Outlook after updating to Windows 11 latest versions is to start Outlook in Safe mode and delete your profile. You have to do this to be able to fix the errors and start using Outlook again without any errors.

To start Outlook in Safe mode, press Win+R on your keyboard and type, outlook /safe and press Enter. It will open Outlook in Safe mode.

To remove a profile from Outlook on Windows 11,

Then, go to Manage Profiles and select Show Profiles.

Then, select your Profile there and select Remove. You have to remove all the profiles on Outlook on your PC to be able to fix the issues. After removing the Profiles, restart your PC and then add profiles again. Then, see if it has fixed the Outlook issues.

Read: Outlook is not responding, keeps crashing, or has stopped working

3] Repair Office

If the errors are still not fixed on Outlook after updating to the latest Windows 11 versions, you need to repair Office, restart your PC, and add a profile.

To repair Office on Windows 11,

Open Settings using the Win+I keyboard shortcut or from the Start menu

Scroll to find your Microsoft Office installation.

On the popup dialog, choose Quick Repair or Online Repair.

It will take some time to repair. You will know when the repair is successfully done. Then, restart your PC and add the profiles back.

Online Repair is what helped me.

Once done, when you launch Outlook, you will be asked to enter your credentials.

How do I fix Outlook in Windows 11?

There are different ways to fix Outlook in Windows 11 when you are facing any issues or encountering errors while using it. You can start Outlook in Safe mode Disable Add-ins, Repair Outlook data files, Delete Profiles, Add or Create a new Profile, and Repair Office. You can implement any of them according to the issue you are facing.

Read: Fix Outlook crashes when creating a new profile

How do I repair Outlook after Windows Update?

You need to first try restarting your PC and see if it has fixed the issue. If not, then run Outlook in Safe mode and remove or delete the existing profiles on Outlook. Then, restart your PC and add the Profiles. If the issues are not yet fixed, you need to Repair Office and restart your PC.

Autoplay Not Working In Windows 11/10

This post will talk about different steps you can take if AutoPlay is not working on Windows 11/10. Windows AutoPlay is one of the valuable features in the Windows OS. For instance, whenever you play a music CD for the first time, the AutoPlay feature asks you which media player you want to use if multiple such applications are installed on your system. But many users have reported that AutoPlay is not working on their Windows PC. Worry not if you are also struggling with the same problem. Try the solutions mentioned below to fix the issue.

AutoPlay not working on Windows 11/10

Here is a list of all the effective solutions to try if AutoPlay is not working on your Windows 11/10 computer:

Enable the AutoPlay feature again

Change Shell Hardware Detection service

Enable AutoPlay notification

Change AutoPlay settings

Change Local Group Policy

Reset the AutoPlay settings

AutoPlay dialog box not showing? 1] Enable the AutoPlay feature again

There can be a temporary glitch in why the AutoPlay feature is not working on your Windows PC. In this case, you can re-enable the feature to solve the problem. Here are the steps you need to follow to do so.

Open the Settings menu on your system.

Select AutoPlay.

Disable the option, and restart your PC.

Come to the location again and enable the option.

Check if it makes any difference. If not, try the next solution.

2] Change Shell Hardware Detection service

AutoPlay will not work on your Windows PC if the Shell Hardware Detection service is disabled. So, manually enable the service and check if it solves the problem. You can do so by following the below steps.

Open the Run dialogue box by pressing Windows + R shortcut key.

Type chúng tôi and press the enter key. It will open the Windows Services.

Scroll down the list and locate Shell Hardware Detection.

Check if the problem is fixed or not.

See: How to Limit Media Autoplay in Microsoft Edge browser

3] Enable AutoPlay notification

The mentioned problem will occur if AutoPlay is disabled under Windows notification settings. You will have to enable AutoPlay notification to solve the problem. Here’s how it’s done.

Locate and open Notifications.

Enable the toggle present next to AutoPlay.

That’s it. Check if you are still facing the problem or not.

4] Change AutoPlay settings

Misconfigured AutoPlay settings can also be a primary reason behind the problem in the question. You will have to change the settings to solve the problem. Here’s how.

Select AutoPlay from the list of options.

Under Choose AutoPlay defaults, change the value to Ask me every time.

Do the same to all the devices installed on your system.

Now, plug in the device and check if the AutoPlay feature is working.

See: How to disable or stop Video Autoplay in Microsoft Edge

5] Change Local Group Policy

You can use the Local Group Policy to solve the problem as well. Misconfigured policy settings will disable AutoPlay on additional types of drivers. Here are the changes you need to make in the editor to solve the problem.

To begin with, open the Run dialogue box on your system.

In the space provided, type chúng tôi and press the enter key.

In the following window, select the Disabled option.

Restart your system and check if the problem is solved or not.

Read: How to prevent AutoPlay from remembering User Choice

6] Reset the AutoPlay settings

If none of the above solutions were helpful, the last thing you can try is to reset the AutoPlay settings. To do so, follow the below steps.

Open the search bar, type Control Panel, and press the enter key.

Change View by to Small icons.

Choose AutoPlay.

Restart your system, and you will see that you are no longer facing the problem.

How do I disable AutoPlay in Windows 11? How do you reset AutoPlay?

Read Next: Enable, Configure and set AutoPlay defaults in Windows 11/10.

Windows Installer Not Working Properly In Windows 11/10

Windows Installer is a core service that manages installations of everything in Windows, including apps, features, and many other things. If, for some reason, it breaks, you will be stuck with new installations and even upgrades of apps.

Windows Installer (msiserver) not working

In this post, we will share a list of error codes – and their solution, some pointing to our existing solution – and how to solve them.

1] Run Program Install & Uninstall Troubleshooter

The first thing we would suggest is to run the Program Install and Uninstall Troubleshooter to repair issues that block program installation or removal because of corrupted registry keys. This program will fix corrupted registry keys on 64-bit operating systems, which control the update data, problems that prevent existing programs from being completely uninstalled or updated, and problems that block you from uninstalling a program through Add or Remove Programs (or Programs and Features) in Control Panel

2] Start the Windows Installer Service

In the Run prompt, type MSIExec, and then press Enter.

If you get the Windows Installer window which tells you everything about MSIExec, then it’s all good.

If you get an error, you might have to start it manually.

You can also run chúng tôi to open Windows Services and go to Windows Installer, and restart it.

3] Windows Installer Service could not be accessed

You may see the message Windows Installer Service could not be accessed. This usually happens if the Windows Installer Engine is corrupted, installed incorrectly, or disabled. You will need to fix either the corruption or fix the configuration or enable it. The linked post also solves the issue where the Windows Installer service could not start, and gives the message as Error 5, Access is denied.

4] There is a problem with this Windows Installer package

If the Windows Installer package faces unstable network access during the uninstallation or installation process, sometimes, the error might appear if you fail to complete the process successfully. The error message might go like “There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor.” 

5] Windows Installer keeps popping up

Usually, the Windows Installer or  chúng tôi runs in the background. You can check in the Task Manager under the list of processes that are running. However, if you see it constantly running, and the Windows Installer keeps popping up, it means it is stuck. It is possible that an installation is not able to complete, and this happens as a result.

Read: Windows Installer Service missing.

6] Installation Package could not be opened

If you are not able to install software that you just downloaded from the internet, and it keeps throwing the error message “Installation Package could not be opened“, then it’s probably a security issue. Windows many a time blocks applications you download from the internet as it does not trust them. You may have to unblock it or disable your antivirus to fix it.

7] Re-register Windows Installer service

If nothing works, the best option in our experience is to re-register the Windows Installer service. The reason why it works great because it fixes registry issues as well, and gets the basic settings ready again.

Launch the command prompt with admin privileges. Type the following commands and hit Enter after each one.

%windir%system32msiexec.exe /unregister %windir%system32msiexec.exe /regserver %windir%syswow64msiexec.exe /unregister %windir%syswow64msiexec.exe /regserver

Close the command prompt, save all your work, and restart your computer.

Check if you are facing Windows Installer issues.

Windows OS maintains a Windows Installer cache. Any files you install are temporarily extracted here and then installed on the PC. If you are deleting files from here manually or during installation or any other program is doing that, you will get an error.

How to check Windows Installer version?

To check the version of Windows Installer on your computer, open the Run box, type msiexec -? and hit Enter. You will see the version mentioned at the top.

How do I fix a corrupted Windows installer?

Since the Windows Installer is a system file, the best way to repair or fix a corrupted Windows Installer is by running the built-in System File Checker. Alternatively, you could search for the latest version of Windows Installer file on the chúng tôi website and download it from there,

Useful link: How to enable Windows Installer logging.

Chrome Autofill Not Working On Windows 11/10

In this article, we will help you to fix Chrome Autofill not working problem on a Windows 11/10 computer. The Autofill feature is helpful to automatically sign in to websites using the saved passwords in Chrome, fill in payment forms or information, addresses, etc., which makes things easier for users. But, sometimes, users face the issue that the Autofill feature doesn’t work for certain sites or all sites. If you are also having such an issue, then you can try the solutions covered in this article.

Chrome Autofill not working on Windows 11/10

Here is a list of solutions that can help fix this Chrome Autofill issue:

Configure Autofill Settings

Check Sync Settings

Update Google Chrome

Clear cookies and cached data

Turn off Chrome extensions

Create a new User Profile.

Let’s check these solutions one by one.

1] Configure Autofill Settings

If the Autofill settings are not configured or set properly, then also it can cause this type of problem. So, you should check and set the Autofill settings for all three categories which include Passwords, Payment methods, and Addresses and more. For this:

Type chrome://settings/autofill in the Omnibox

Press the Enter key. This will open the Autofill section.

Now you can access each category one by one and set the required options for auto-filling the data.


For this category, do the following things:

Turn on the Auto Sign-in option

Turn on the Offer to save passwords option

Also, scroll down the page to access the Never Saved section. Here, remove those websites from the list for which you want the Chrome Autofill feature to work again.

Payment methods

In this category, turn on:

Save and fill payment methods option

Allow sites to check if you have payment methods saved option.

Addresses and more

Here, turn on the Save and fill addresses option so that you can automatically fill information like email addresses, phone numbers, etc., to sites from the previously saved information and also save the new information.

2] Check Sync Settings

If you are able to use saved payment details, passwords, etc., on a device, but not on another device, then you should check your sync settings on that device and make sure that options related to the Autofill feature are enabled. To do that, use these steps:

Type chrome://settings/syncSetup in the Omnibox (or address bar)

Press the Enter key

Access Manage what you sync section

Select the Customize sync option

Under the Sync data section, turn on the buttons available for Addresses and more, Passwords, and Payment methods, offers, and addresses using Google Pay

3] Update Google Chrome

An outdated program or application can cause different issues to a program and its features. The same could be the case for the Autofill feature of Google Chrome. So, it is good to update the Google Chrome browser that can help you fix known issues and bugs and it might also this Autofill feature problem.

Related: How to transfer Google Chrome profile to another computer.

4] Clear cookies and cached data

Outdated cache, site settings, and corrupt cookies can also affect the Autofill feature of Chrome because of which it is not working as expected. So, you need to clear such browsing data. The steps are as follows:

Open Google Chrome browser

Press Ctrl+Shift+Del hotkey. This will open the Clear browsing data section in a new tab

There, access the Advanced tab

Set Time range to All time using the available drop-down menu

Select Cookies and other site data option

Select the Cached images and files option

Uncheck the rest of the options like Autofill form data, Passwords and other sign-in data, etc.

Press the Clear data button.

5] Turn off Chrome extensions

It might be possible that some of the Chrome extensions installed by you are interfering with the Chrome Autofill feature. As a result, that feature is not working for all or specific sites.

6] Create a new User Profile

If your default user profile is corrupted, then it can cause various problems, including this one. In that case, you need to create a fresh default profile for that user account. You will lose your locally stored data. Here are the steps:

Exit or close the Chrome browser completely

Open File Explorer on your Windows 11/10 computer

Access the User Data folder of the Chrome browser. For this, enter the following path in the address bar of File Explorer and press the Enter key:

%UserProfile%AppDataLocalGoogleChromeUser Data

Now rename the Default folder with chúng tôi folder or some other name. That will also work as a backup for your previous profile

Launch Google Chrome

Sign in to the Chrome browser with your Google account. All your browsing history, extensions, and other data will be synced (if saved).

This will create a fresh user profile and a new Default folder to store local data on your Windows 11/10 computer for the Chrome browser. Now you should be able to use the Google Autofill feature.

If none of these options work, then you should reset Chrome browser settings to default.

How do I fix Chrome Autofill?

If the Chrome Autofill feature is not working, then you can try some fixes like updating the Chrome browser, clearing cached data, checking sync settings, etc. We have covered all such solutions in this post above. Try these fixes and then you will be able to autofill passwords, addresses, and other data from the saved information again on your Chrome browser.

Why is autocomplete not working in Chrome?

If Google Search autocomplete feature is not working in your Chrome browser, then most probably it is turned off. If this is the case, then you can turn on or enable autocomplete feature using the following steps:

Type chrome://settings/syncSetup in the Omnibox of Chrome

Press the Enter key

Under the Other Google services section, turn on Autocomplete searches and URLs option.

In addition to that, you can also try other solutions like clear cookies, restart Chrome, disable extensions, reset Chrome, etc.

Read next: How to set up and use Microsoft Autofill Password Manager on Chrome.

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