How to Fix Windows 10 Error 0x80072ee7

If, while using your computer, you encounter the ACPI.sys Blue Screen error, read on as this post will guide you in fixing the problem. The ACPI.sys file is a Windows operating system file that is related to the MSDN 2939. ACPI.sys, the Windows ACPI driver, is an inbox component of the Windows operating system. It is the one that supports the power management as well as the Plug and Play or PnP device enumeration. And so if this file ends up getting corrupted, it is known to cause a Blue Screen error. Another possible cause for the ACPI.sys Blue Screen error includes RAM issues, incompatible firmware, hard disk issues, corrupted drivers or malware infection, and so on. Here are some Blue Screen errors that can be triggered by the ACPI.sys file:

• KMODE EXCEPTION NOT HANDLED
• PAGE FAULT IN A NONPAGED AREA
• SYSTEM THREAD EXCEPTION NOT HANDLED
• IRQL NOT LESS OR EQUAL
• KERNEL DATA INPAGE
• SYSTEM SERVICE EXCEPTION

To fix the Blue Screen error associated with the ACPI.sys file, refer to the instructions provided below.

Option 1 – Try to recreate the ACPI.sys file

If the first option didn’t work, the next thing you can do is to recreate the ACPI.sys file. Every time your Windows 10 PC boots up, it looks for all the system drivers in place and if it is unable to find them, it tries to create them. This is why if you remove your corrupt driver file, chances are, you might get a fixed file recreated just for you. How? Refer to the steps below.

• Boot your Windows 10 PC in Safe Mode.
• Then open File Explorer and navigate to this location: C:/Windows/System32/drivers
• From there, look for the file named ACPI.sys and rename it to ACPI.old.

Note: As you can see, the file’s extension has changed from .sys to .old.

• Now restart your computer and check if the ACPI.sys Blue Screen error is now fixed.

Option 2 – Try to update or rollback the ACPI Driver

The first thing you can try to fix the Storport.sys Blue Screen error is to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Tap the Win + X keys to open the Win X menu and from there, select the Device Manager.
• After opening the Device Manager, look for the ACPI.sys driver and right-click on it, and then select Properties.
• Next, go to the Driver section. Note that the rollback option would only be available if you’ve recently updated the ACPI.sys driver. So if you can’t see it then click on the Update Driver button.
• After that, Windows will automatically check for the problems that could be related to the Blue Screen error.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can also directly download the relevant drivers of your computer from the manufacturers’ website. So if you have an SSD, the issue might be due to an old storage driver. On the other hand, if updating the ACPI driver, didn’t work, you can also try to copy the ACPI.sys system driver file from the System32 folder of another computer that’s functioning properly and runs the same Windows OS version. Afterward, place it on your problematic computer and check if it fixes the BSOD error or not.

Option 3 – Run System File Checker or SFC scan

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

 Reboot your PC.

Option 4 – Run the Blue Screen Troubleshooter

Troubleshooting Blue Screen of Death errors wouldn’t be complete without the Blue Screen troubleshooter. As you know, it is a built-in tool in Windows 10 that helps users in fixing BSOD errors like ACPI.sys. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 5 – Run System Restore

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

Error Code 0x8024001b- What is it?

At its most basic level, Error Code 0x8024001b is an error that can cause problems with the installation and updates of software and operating system updates. The most common version of this error appears in Windows 10, but a similar error with a matching code number has been present in previous versions of the operating system, back through Windows 7.

Common symptoms include:

• Programs freezing or locking up during use
• The appearance of an error message regarding installation difficulties
• Computer shutting down or freezing during operation
• Difficulty in running multiple programs at the same time

Solution

Error Causes

There are two main causes for Error Code 0x8024001b, both of which are fairly simple:  Updates needed for the Windows Update tool itself and software that causes Windows Update to fail during installations through conflicts in system files. While these may seem like technical issues, these problems are actually easily resolved with a few simple steps. The average user can use the methods listed below to fix the problems on their own.

Further Information and Manual Repair

For users who want to address Error Code 0x8024001b for themselves, the steps below can be followed to address the two primary causes for the error. If you have difficulty in completing these steps or are not confident in your computing skills and ability to follow the listed steps, contact a Windows repair technician.

Here are the top methods to resolve Error Code 0x8024001b on your own:

Method One:  Check for Updates to Windows Update

In some cases, the Windows Update tool may need an update for itself. When you attempt to run updates or install wizards for other software, it can cause conflicts with the Windows Update process, slowing down your computer or causing it to freeze.

If you are attempting to run multiple installations or updates at the same time, it may also cause Error Code 0x8024001b to arise on your computer.

To resolve this issue, close out all programs, with the exception of the Windows Update tool. Within the tool, select “Check for Updates” and install any updates that are needed. When finished, you should restart your computer to ensure that all updates have been fully applied before attempting any other installations or updates.

Method Two:  Uninstall Conflicting Software

Another problem that can cause Error Code 0x8024001b is the presence of conflicting software. If Error Code 0x8024001b has only recently appeared on your computer, consider removing any software that has been added to your computer, running the Windows Update process, and restarting your computer before attempting to reinstall the problem software.

With any method that you use, it is important to remember to keep your Windows Updates current at all times. This is the best way to avoid the appearance of Error Code 0x8024001b and similar errors in the future, as stacked up updates are more likely to cause issues and conflicts with your other installed software and operating system.

While there are some tools out there that claim to be able to fix Error Code 0x8024001b for you, it is important to always thoroughly investigate the publisher and distributor of such software, as some of the tools available on the Internet will actually introduce malware and adware on your computer in the name of “protecting” your computer or resolving an error.

If you have tried to use both methods above and have not fully resolved Error Code 0x8024001b, get in touch with someone who is a qualified computer repair professional and is familiar with your particular version of the Windows operating system to assist you in finalizing your resolution.

Method Three: Use An Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

Error Code C0000135- What is it?

C0000135 is a blue screen of death error code (BSoD) also referred to as the ‘Stop’ error. This error code usually pops up on the screen at startup. The system stops and displays the error code:

Stop: c0000135 {Unable to Locate DLL} The dynamic link library FILE_NAME could not be found in the specified path Default Load Path

Solution

Error Causes

There are multiple reasons behind the error code C0000135 BSoD such as:

• Missing and damaged .DLL files which is linked to registry corruption
• Malware attack
• Viral infection

When this error code pops, the computer screen turns blue and hampers your ability to use Windows successfully. Nonetheless, if the error C0000135 is not repaired timely this error can cause a great deal of damage to your PC. It puts you at risk of:

• Data Loss with possibly no chances of recovery
• System Failure and crash
• Cybercrime if malware is the underlying cause of the occurrence of the error code C0000135

To avoid serious PC damages and inconvenience it is advisable to repair this error immediately.

Further Information and Manual Repair

There are two ways to fix the error code C0000135:

1. Hire a Professional
2. Download Error Tools PC Repair

Hire a Technician

Hiring a professional can be costly. You may have to pay hundreds of dollars to the technician to resolve this issue. However, the latter option is not only money-saving but also time-saving, convenient, and simple. In fact, it is so easy that even if you have no technical knowledge you can still work your way around it and repair the error in seconds.

Download Restoro

Restoro is a top-quality, efficient, and multi-functional PC fixer. It is integrated with cutting-edge technology. It has a comprehensive suite of advanced utilities like an intuitive registry cleaner, powerful anti-virus, and a smart system stability detector. All of these exciting and highly functional features are combined together in one. With this helper, you don’t need to search for the underlying cause of the error. When you experience the BSoD error code C0000135 on your system all you have to do is run it for a scan and its intuitive in-built technology will detect the issues and causes in no time and display them to you in the form of a comprehensive scan report. Once the scan is complete, you just have to hit the repair tab to resolve it. It’s that easy and fast! Restoro is powered by a highly functional registry cleaner. This cleaner helps detect all the errors related to the registry. It cleans the unnecessary files cluttering and damaging the hard disk including the junk files, invalid registry entries, internet history, and the files from the programs that you have uninstalled on your PC. These files acquire a lot of disk space and damage .dll files as well. Overloaded registry also slows down the system and the CPU and RAM then require more power to start and function. The registry cleaner embedded in the Restoro removes and wipes out all this unnecessary clutter, clears up the disk space and repairs the damaged files, and corrupted registry, and thus resolves the error code C0000135 on your system. Restoro also serves as a system optimizer. And when you repair issues on your PC with this helper, you’ll see a massive difference in the speed and performance of your computer. It will run smoothly and boot efficiently. Restoro is safe to use. It is bug-free and used widely by PC users experiencing different types of PC-related issues including the error code C0000135. It has easy navigation and a user-friendly interface. You can download and run Restoro on all Windows versions. Click here to download Restoro today!

The Windows update error 0x8024ce0e can happen as a result of improper installation, a virus, or due to file corruption. Follow this guide to easily fix errors and continue with your work.

1. Restart Windows

   As awkward as it seems this method actually works most of the time. Click on the start button and restart your system.

2. Check hard disk space

   Of course, when installing updates there should be enough disk space for updates to be downloaded and installed. Check your disk space to see if there is sufficient available space.

3. Disconnect external components

   External components can interfere sometimes with the update process, disconnect external hard drives, USB, and other devices, leaving only the keyboard, mouse, and core ones.

4. Check devices in the device manager

   Open device manager and visually check to see if there is a device with a yellow exclamation sign next to it. If there is such a device, right-click on it and choose update driver.

If you recently upgraded your computer or if you’ve just switched to a new Windows 10 PC, the most common errors you might encounter are the Windows Activation errors. This issue boils down to the Windows Activation server which has either failed to validate or recognize the license tied to the digital account. In this post, you will be guided on how to fix an activation error in an organization with an error code 0x8007007B. It contains this exact error message: “We can’t activate Windows on this device as we can’t connect to your organization’s activation server. Make sure that you’re connected to your organization’s network and try again. If you continue having problems with activation, contact your organization’s support person. Error code 0x8007007B.” Various computers are activated via the KMS licensing (Key Management Server) in organizations. Computers that are activated using this process do not get a permanent activation and have to stay connected to the organization instead of for at least 7 months or 180 days. It is common in Pro and Enterprise versions that are deployed in bulk for at least hundreds or thousands of computers. So imagine a user with a personal computer in the office who decided to leave the organization but will still have an activated Windows key. And so to prevent that from happening, organizations use the KMS licensing. Another possible cause of the error is in case some user used an organization key and later on, the PC just got upgraded or downgraded to a version that is not compatible with that copy of Windows. To fix this Windows Activation error, here are some suggestions that might help.

Option 1 – You can try connecting to the organization’s network and activate the computer. But before that, you need to first check if the computer actually belongs to an organization or not.

• Tap the Win + R keys to open the Run dialog box.
• Type “cmd” and hit Enter to open an elevated Command Prompt.
• After that type the vbs /dlv command and hit Enter to execute it.
• Next, check if the Product Key Channel says “GVLK”. If it does, then it means that your computer was activated using volume licensing.

Option 2 – Change Licence Key

If you’ve recently left an organization then it’s best if you buy another copy of Windows 10 and then change the license key. This time, make sure that the license key is for the same version of Windows. However, if it’s different, you need to format your computer.

Option 3 – You can try activating Windows 10 using a mobile phone

Activating Windows 10 can also be done using your phone. Just note that you have to call Microsoft to do so.

• In the Start Search box, type in “Slui 4” and tap Enter.
• Next, select your country and click on Next.
• Keep the window open and call the toll-free number of the country you’re from.
• Afterward, a confirmation ID should be given by the automated system which you must take a note of.
• Finally, in the box on the window, type in the confirmation ID and click on the Activate button. That should do it.

Option 4 – If you think that the issue is caused by some hardware changes, you can try using the Activation Troubleshooter.

There are times when users already have the license keys and were able to activate Windows. However, it doesn’t last long and only works for a while and it’s suddenly throwing up an activation error like this one. To use the Windows Activation Troubleshooter, just go to Settings and to Activation and then run the troubleshooter from there. If you've made some modifications to your hardware, you have to click the “I changed hardware on this device recently” option for further suggestions.

If you got an Activation Error 0xC004F211 after having installed or upgraded your Windows 10 PC, then this indicates that some hardware in your computer has changed which’s causing the error to pop up. Windows might not be able to determine if the key is used on a new computer or if it’s still the same one if you have just removed or upgraded old hardware. But worry not for this post will guide you in fixing the Windows Activation Error 0xC004F211 on your Windows 10 computer. When you encounter this error, you will see the following error message on your screen:

“Cannot activate Windows 10. Try activating again later. If that doesn’t work, contact support. Error code: 0xC004F211.”

Note that although hardware changes cause this error, the minor ones don’t really cause any issues with activation, however, if you have made any significant hardware change such as replacing your motherboard, it will most likely cause the activation error. In such cases, the Windows Activation system will treat this as new hardware and you will need a new license for that. Even if your Windows 10 computer has a genuine key, it might still fail to get activated which results in the Windows Activation Error 0xC004F211. Thus, before you do other troubleshooting steps, you need to run the Windows 10 Activation Troubleshooter first. To do so, follow these steps:

• Go to Settings and then select Activation.
• After that, click on the Windows Activation and then troubleshoot. This will help you address most of the commonly found activation issues in Windows devices.

In addition, there is an exception offered by Microsoft – if you are connected to a Microsoft account prior to the hardware change, then you can most certainly use the same license key to reactivate Windows 10 again. Microsoft calls this an “Exception path” which should be fixed easily by the Windows Activation Troubleshooter as pointed out earlier. However, if the Windows Activation Troubleshooter isn’t able to resolve the error you can try purchasing a new license. In such rate case, even if you do have a Microsoft account available on your Windows 10 computer, and if Windows was never activated, this solution will not work. And if you haven’t connected your Microsoft account with your Windows 10 computer prior to the major hardware change, then your only option left is to purchase a new license. For you to do that here are some steps you can follow.

• To purchase a new Windows license, the first thing you have to do is click on the Start button > Settings > Update & Security.
• From there, go to Activation and select the “Go to Microsoft Store” option.
• After receiving your new license, you need to go back to Update & Security then go to Activation and select the “Change product key” option.
• Now update your Windows 10 computer using the new key and it should automatically activate your computer.
• Next, you have to create a Microsoft account or connect your existing local account to your online account.
• Once the system links the key and the account, you need not buy a new license in case something like this happens again.

Note: If you are an IT administrator, you need to keep in mind that there is a limit to the number of times you can reactivate Windows on your computer. Moreover, if you don’t see any option to reactivate the license, and it is a work computer, you need to contact your organization’s tech support.

Error Code 0x8007007B (Code 0x8007007B) – What is it?

Error code 0x8007007B (Code 0x8007007B) is an error that occurs when you attempt to activate Windows 10, as well as Windows Server 2008, Windows Vista, Windows 7, Windows 8, or Windows Server 2012.

Common symptoms include:

• You will see an error message like this: “Error 0x8007007B 'The filename, directory name, or volume label syntax is incorrect”.
• If you are using volume-licensed media to install: Windows 7, Windows 8, Windows Vista Business, Windows Vista Enterprise, Windows Server 2008 R2, Windows Server 2008, Windows Server 2012, Windows 10.
• Your computer is not connecting the activation wizard to a Key Management Service (KMS) host computer.

Solution

Further Information and Manual Repair

Error Code 0x8007007B usually occurs when a product key has been activated too many times. Blocking activation aids in avoiding abuse of the key. If abuse of the key is not the case, it is possible to get the key reset, or you may receive a new key altogether. When you are not sure that you can complete these methods yourself, as they do contain advanced steps, it would be wise to consult a computer repair technician to avoid making the problem any worse.

Generally, the solution can be simple; it is just dependent on how comfortable you are with getting technical in your computer. Volume licensed media means that the media has a preset number of times that it is allowed to be activated. This helps to avoid misuse of the product. Some people install the Windows 10 program multiple times on their computer if they are software developers or do certain types of software testing. It is important to know the cause in order to effectively find the solution.

Method One:

1. From the desktop screen, press the Windows key and S, type “Command Prompt”. Then, right-click on Command Prompt in the results. Select Run as Administrator.  Click Yes when asked about requesting permission.
2. In the Command Prompt box, enter the command: slmgr.vbs -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx
3. The x's represent the product key. Replace these with your unique product key.
4. Type in the following command into the “Command Prompt” window: slmgr.vbs -ato
5. Click Enter
6. Restart your computer and try to activate windows again. It should not show the error code anymore.

Method Two:

1. While on the desktop, press the Windows key and R.
2. A window saying Run should open.
3. Type in the following command: Slui 3
4. Press ENTER and a window should appear.
5. This window asks for you to enter the operating system activation product key.
6. Enter this key in the space provided.
7. After entering this, click Activate.
8. Restart your computer now.
9. Check for activation. The Error code should be gone now.

Method Three:

1. Open the Command Prompt with access as administrator just as in Method One, and enter the following command: sfc /scannow
2. The command will complete the tasks. This will take some time so just let the computer do its thing and work. Let the sfc finish the scan.
3. When the scan is complete, restart the computer.
4. Check for the activation. The error code should be gone at this point.
5. If it is gone, revisit Method One or move on the Method Four.

Method Four:

Call the Microsoft Support Team and explain the problem in as much detail as you can give. Give the team the error code 0x8007007B and ask to have a different product key. When they give you the new product key, repeat Method 2. The Microsoft Support Team will either change your product key, or they will reset your current product key so that it can be used for activation again.

A lot of Windows 10 users prefer the black theme on their computers and when you see anything but black it can get quite annoying. Such as is the case of the Taskbar which, as you know, is usually dark, however, when you take a look at the Cortana search bar, instead of seeing black, you’ll see that it has turned white. To fix this issue, read on as we will provide you some options you can try to set the Cortana search bar back to black. Before you proceed, take note that the options provided below will change all white search boxes to black and that one of these options needs administrative privileges.

Option 1 – Try changing the default App mode

As you know, Windows 10 has two modes, namely the Light and the Dark. Thus, you can switch to the Dark mode so that your Cortana search bar will be black as well. However, remember that it will completely change everything into dark mode so there will be no more Light mode elsewhere.

• First, you need to click on the Start button and then click on the cog icon to open the Windows 10 Settings.
• Next, from the Settings Menu, select Personalization and then select Colours from the left pane.
• Then scroll down until you see the “Choose your default app mode” option and select “Dark”.

After you apply the changes, it will change the Cortana search bar into black instantly. Aside from that, you will also see the User Interface changing into dark mode.

Option 2 – Try changing the Registry value

If you are well-versed in editing registry keys, then you need to try this option. But before you go over the steps below, make sure that you create a System Restore point first so that if anything goes wrong, you can always go back to how it was before the changes were applied.

• Tap the Win + R keys to open the Run prompt.
• Then in the field, type in “regedit” and hit Enter to open the Registry Editor. If a User Account Control prompt appears, just click Yes.
• Now that you’ve opened the Registry Editor, navigate to the following key:

HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionSearchFlightingWhiteSearchBox

• After that, double-click on the “Value” key located on the right pane and set the value to “0” instead of “1” and then click Ok to save the changes made. You should now see a black or grey text box color instead of white.

Option 3 – Try changing the Region

In some forums, a lot of users stated that changing the Region also worked out for them in changing the white Cortana search bar to white. Thus, you need to change the region settings of your computer temporarily. To do so, follow the steps below.

• Type in “Regional Settings” in the box and then click it as soon as it appears from the search results.
• Next, make sure to select a region where Cortana is not available.
• Then select apply to that region. After that, it will change the Cortana search bar color to black.
• Now sign out and sign back in and revert to the original settings. But the changes you made earlier in Cortana will still remain.

In this post, you will be guided on how to import and export the WSL distros in your Windows 10 computer. WSL, also known as Windows Subsystem for Linux, is a compatibility layer needed to run Linux binary executable in Windows 10, as well as the Windows Server 2019. In case you don’t know, when you reinstall or reset Windows 10, all of its configuration data stored with the WSL distros gets deleted. Going back or restoring the configuration can be quite challenging but worry not for Microsoft has already got this covered as you can now import and export the WSL or Windows Subsystem for Linux distros. There are three aspects that you have to deal with when you import or export WSL distros in your Windows 10 computer, such as importing WSL distro, exporting WSL distro, and uninstalling the imported WSL distros. Before you proceed to the instructions provided below, make sure that all your installed distros are updated via Microsoft Store. Once you have this covered, follow the options below.

Option 1 – Import the WSL distro

• Type “command prompt” in the Start Search and from the search results, right-click on Command Prompt and then select the “Run as administrator” option.
• After opening Command Prompt as admin, execute this command: wsl --list –all
• The command you entered will list all the installed WSL distros on your computer. And now it’s time for you to import a WSL distro by executing this command: wsl --import <Name of the distro> <Fill path to save the backup .tar file>

Note: In the given command above, replace “<Name of the distro>” with the name of the distro you want to import and replace “<Fill the path to save the backup .tar file>” with the location where you want to save the .tar file.

Option 2 – Export the WSL distro

• Type “command prompt” in the Start Search and from the search results, right-click on Command Prompt and then select the “Run as administrator” option.
• After opening Command Prompt as admin, execute this command to see the list of all the installed WSL distros in your computer: wsl --list –all
• After that, execute this command to export a WSL distro: wsl --export <Name of the distro> <Fill path to save the backup .tar file>

Option 3 – Uninstall the imported WSL distro

• Open Command Prompt with admin privileges.
• Next, execute this command to view the list of all the installed WSL distros: wsl --list –all
• After that, execute this command to uninstall an imported WSL distro: wsl --unregister <Name of the distro>
• Once it’s done, close Command Prompt and restart your computer.

Error Code 0x8007007b – What is it?

This error code occurs when users fail to activate their Windows operating system. It is one of the more popular Windows error codes since it affects many versions of Windows including Windows 7, Windows 8.1, and Windows 10. Error code 0x8007007b has common symptoms which include the following:

• Inability to activate a Windows installation
• Message box highlighting error code 0x8007007b

Solution

Error Causes

Error code 0x8007007b in Windows 8.1 usually results due to one or more main clauses. Windows 8.1 users may experience this error due to the use of volume-licensed media. The error code may also arise if the activation wizard is unable to connect to Key Management Service (KMS) host computer or if corrupted system files are present on your computer.

Further Information and Manual Repair

Windows error codes such as Error code 0x8007007b can be a complicated issue, requiring the use of technical knowledge and skills. For this reason, we have listed instructions in the simplest of forms to enable even average users to successfully complete manual repair methods that will resolve error code 0x8007007b.

The same approach has been applied to all our error code solutions. See also Error Code 0x00000024 and Error Code 0x80004005.

Below are the two main methods for correcting this issue.

Method One: Use Multiple Activation Key (MAK) to Activate Windows

This method involves the use of a Multiple Activation Key (MAK) instead of the Key Management Service (KMS) to activate the Windows operating system you intend to use on your PC. This manual repair method requires the use of Command Prompt so ensure you follow the instructions provided carefully so as to avoid the risks of causing harm to your system.

• Step one: Select Windows log key + X.
• Step two: Click Command Prompt, then Admin
• Step three: Type in admin password if Command Prompt requests it
• Step four: Type slmgr -ipk followed by the MAK product key. Note that the product key should have 25 characters with dashes between them like this xxxxx-xxxxx-xxxxx-xxxxx-xxxxx

Attempt to activate your Windows installation once you’ve completed the exact instructions above. If you are unable to complete this process, consider getting help from a Windows repair technician or simply move to the next manual repair method listed below.

Method Two: Run System File Checker

System File Checker (SFC) enables Windows users to scan and repair errors or corruption on system files. Since such errors within your system files can cause error code 0x8007007b to occur, follow the steps below to fix this error code.

• Step One: Go to Start and type Command Prompt or CMD.
• Step Two: Run as Administrator
• Step Three: Type sfc /scannow with a space between “sfc” and “/scannow”.

The System File Checker tool will begin scanning your machine for corrupted or missing files in need of repair. If these files are found on your system, the tool will repair and replace them. Once this is done, restart your computer then check to see if you can now activate your Windows operating system.

Method Three: Use an Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 8 and other related issues when they do arise, download and install a powerful automated tool.