How to Manually Fix 0x8004210A Error Code on Your System

As you know, Excel sheet is frequently acclaimed as one of the most useful software that allows users to create spreadsheets, crunch numbers as well as prepare a business report. Usually, tapping the arrow keys to move from one cell to another. However, there are times when you might experience trouble in tapping them – for instance, they won’t work when you tap them. This kind of problem can be quite frustrating since no matter what you do, especially when you tap the arrow keys, instead of a single cell, it moves the entire spreadsheet. If you are one of the users who experience this problem, worry no more for this post will guide you on what you can do to fix it. When arrow keys won’t function as intended in Excel spreadsheets, it could be due to unintended behavior of the Scroll key or it could be related to some issues with the keyboard driver. Whatever the cause is, here are some suggestions you can check out to fix it.

Option 1 – Try to disable the Scroll Lock

The first thing you can do to fix this problem with arrow keys is to disable the Scroll Lock. Although doing this is easy, newer laptops don’t actually come with it so if your keyboard does not come with a scroll key, all you have to do is tap the Fn key and disable Scroll Lock. Aside from that, you could also use the on-screen keyboard to turn off the Scroll Lock. You will see its status on the Excel sheet which will help you to double-check. Moreover, you could also tap the Shift + F14 keys to toggle off the Scroll Lock. To use the on-screen keyboard to turn off Scroll Lock, follow the steps below.

• Tap the Windows key and type “on-screen keyboard” and then tap Enter.
• Once the on-screen keyboard is opened, you should see that the Scroll Lock is on the “On” position since the ScrLk keys are in blue.
• Like pointed out earlier, you can utilize the Scroll Lock indicator located in the status bar as well as disable or enable the scroll key by using this feature on Microsoft Excel.

Option 2 – Try turning on the Sticky key

If disabling the Scroll Lock did not fix the problem, you can try turning on the Sticky Key instead. A lot of users reported that this option fixed the problem for them. So you should try to turn on the Sticky key and to do that, follow the steps below.

• First, type “control panel” in the Start Search and click on Control Panel from the search results.
• Next, select the “Turn On Sticky Keys” option and click on OK.
• After that, go back and uncheck the “Turn On Sticky Keys” option. This should fix the malfunctioning arrow keys on Excel.

Option 3 – Try running the Hardware and Devices Troubleshooter

The first thing you can do to fix the problem is by running the Hardware Troubleshooter. Although it won’t make much of a difference, there’s still a possibility that it could automatically fix the problem with these function keys. To use it, refer to these steps:

• The first thing you need to do is click on Start and then on the gear-like icon to pull up the window for Settings.
• After opening Settings, look for the Update and Security option and select it.
• From there, go to the Troubleshoot option located on the left-hand side of the list.
• Next, select Hardware and Devices from the list and open the Troubleshooter and run it. Once it is doing its job, wait for it to complete the process and then restart the system.
• After the system restarts, check if the problem’s now fixed. If not, refer to the next option given below.

Option 4 – Update the keyboard driver

You can also update the keyboard driver to fix the problem. There are cases when an outdated or corrupted driver can fix the problem. To do so, follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Then type “devmgmt.msc” in the field and hit Enter to open the Device Manager.
• From there, look for the keyboard driver and click on it.
• Next, right-click on the keyboard driver and select the Update driver option.
• After that, click the “Search automatically for updated driver software” option to proceed.

Option 5 – Reinstall the keyboard driver

If updating the keyboard driver didn’t help, then you might want to reinstall it. How? Follow the steps below.

• Tap the Win + R keys to launch Run.
• Type in MSC into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. Look for the keyboard driver, right-click on it and then select “Uninstall device”.
• After that, unplug the device and restart your PC.
• Then plug your device back in. Assuming your device is connected to your PC, open the Device Manager again.
• Next, click on the Action button and click the Scan for hardware changes button. That should fix the problem

Note: You could also completely uninstall the driver and go directly to the manufacturer’s website and download the latest driver for your hardware and then install it.

Recently, several Windows 10 users have reported an issue with the Windows folder sizes in their PCs. If you are one of these affected users, read on as this post will walk you through fixing this issue. For instance, if you have a folder with 100 GB worth of data and when checking its size using its properties, you see the wrong size instead of 100GB. The size displayed will most likely be a random number which can either be bigger or smaller than the real size of the folder. This incorrect folder size issue does not happen to any specific drive or certain kinds of folders as any folder can be affected by this incorrect folder size issue. When you try to rename the affected folder, the size will change but its size still remains to be incorrect. The root cause of this particular issue is in Windows 10 itself. It is a known bug that came along with one of the latest Windows Updates which prevents the File Explorer to accurately read the metadata of a certain folder or file and leads to displaying incorrect and unexpected file sizes and the reason why you might also notice that your drive is also not correct. Since this is brought upon by one of the recent or latest Windows Updates the good thing is that Microsoft will most likely release a fix on its next upcoming updates but until then, you will be left with no choice but to deal with an incorrect folder or file size. To remedy that, here are some suggestions you can try that might fix the problem.

Option 1 – Try using the System File Checker

The 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 to good system files that might be causing the incorrect folder or file size in Windows 10. 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.

Option 2 – Try resetting Windows 10

To fix the folder and file size issue, you can try resetting Windows 10. Doing so won’t get rid of any file in your system – instead of erasing all your media files and documents, this reset option resets all the system settings and files. That way, you won’t have to deal with inaccurate folders or file sizes as you browse and use your files.

Option 3 – Wait for the Windows Update

As mentioned, this is already a known issue and a lot of Windows 10 users have already complained about it to Microsoft so a bug fix will be soon released in the latest Windows Updates.

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!

0x800ccc92 - What is it?

Do you come across this error message “Receiving’ reported error (0x800ccc92): “Your e-mail server rejected your login”? Verify your user name and password in your account properties. The server responded: - ERR invalid user names and password” when you try to send or open emails using your Outlook account? If yes, then this article is a must-read for you as we explain why this error occurs and how you can resolve it. To begin with, 0x800ccc92 is a common Microsoft Outlook error. This error restricts your ability to send and receive emails on your Outlook email address. In other words, it locks you out and hampers your ability to use your account successfully causing a great deal of inconvenience especially if you use your Outlook account for communication in and across your office.

Solution

Error Causes

The 0x800ccc92 error message may occur due to numerous reasons so narrowing it down to one particular reason for occurrence is not easy. However, here we have listed down some of the most common causes of this error code:

• Incorrect Outlook configuration settings
• Invalid password or username
• PST file crosses its fixed file size limit
• Failure of POP3 and Protocol STMP in database server connection
• Improper synchronization between Outlook and the server
• Virus Infection
• Invalid registry entries

Further Information and Manual Repair?

To fix the error code 0x800ccc92 on your system, here are some quick, effective, and easy DIY solutions that you can try:

Solution 1:

Sometimes the error code may occur due to an invalid password and usernames entry. Therefore, first, cross-check user ID and password. If you’ve entered the wrong password, try inserting the correct password to access your account.

Solution 2:

If the error still persists, then try installing the latest available Server Service Pack for Exchange. This solution works best if compatibility is the issue and the underlying reason for the error is improper synchronization between Outlook and the server.

Solution 3:

The presence of malware and viruses can also lead to such errors. Therefore, it is advisable to scan your entire PC for malware and viruses using a powerful antivirus.

Solution 4:

If the issue occurs due to bad and invalid registry entries, then it is important that you remove them right away. Due to such entries, you may experience the 0x800ccc92 error on your PC. To remove them, you need to download a registry cleaner. Downloading two programs an antivirus and a registry cleaner separately may slow down the speed of your PC. Therefore, to ensure this does not happen it is recommended you install Restoro Restoro is an advanced and multi-functional PC Fixer. This software is deployed with an intuitive algorithm and multiple powerful PC repair utilities including a registry cleaner, anti-virus, and a system optimizer. It is a one-stop solution for all PC-related issues. Using this tool, you can scan your entire PC and remove all types of malicious software including malware, viruses, spyware, and Trojans corrupting your PC in seconds. Simultaneously, it also removes all bad registry keys and entries and files the damaged system file, thereby restoring the registry back to normal. The system optimizer utility ensures your PC speed is not compromised due to the repair process. This software is safe, bug-free, efficient, and user-friendly. It is compatible with all Windows versions. Click here to download Restoro on your PC to instantly remove viruses and invalid registry entries to resolve the 0x800ccc92 error message on your system now!

Error Code 30088-26 is shown when the user tries to install the MS Office suite to their PC. It is mostly due to several reasons including corrupted Office installation, the remnant of old office installation, or even Windows updates. We will cover all reasons along with provided solutions to each one. Follow the guide below to address each scenario with the fix for it.

Corrupted Office installation

In order to fix this issue, you will need to repair the installation itself.

• Press ⊞ WINDOWS + R to open the run dialog
• Inside run dialog type in Control Panel
• In the control panel double click on Programs and features
• In the list of installed application find MS Office and click on it to select it
• On top, just above the application list click on the change
• Office dialog will be opened with multiple choices
• Click and select Online repair and then click on Repair
• Make sure that you have a stable internet connection and leave the process to be finished

Remnants of old office installation

Manually cleaning remnants of old office installation is not an easy task and it can be different from system to system depending on the previous Office version. Luckily Microsoft has a dedicated office cleaning tool made for purpose of removing old tails and remnants of old office installations.

• Download tool here
• After the tool has been successfully downloaded, double-click on the .diagcab file to open it
• Click on Advanced and make sure that the box associated with Apply repair automatically is checked.
• Click the Next button to proceed
• Wait until the initial detection phase is complete, then click on Installing at the first prompt
• Select the program that you’re encountering issues with (most likely Microsoft Office) and click Next once again
• At the next screen, click on Yes, try to uninstall
• Wait until the operation is complete, then restart your computer and re-install the Microsoft Office suite

Windows Updates

After digging and trying out various solutions for this issue we came to the conclusion that this error can occur if Windows is not fully updated, and by fully updated we mean fully, not just critical updates, but all available ones. Check-in your setting to see if there are some uninstalled or pending updates waiting to be installed and if that is the case install them all. After completely updating your Operating system error should vanish and you should be able to install Microsoft office without issues.

Msvcr71.dll Error - What is it?

Msvcr71.dll is a dynamic library link that belongs to the Microsoft Visual C Runtime library. This file is a core Windows component used by numerous Windows applications like Microsoft Office version 2002 and 2003, Windows XP Media Center, and Windows XP Tablet PC Edition. The Msvcr71.dll error commonly occurs when two applications share the same DLL file. When an application is deleted sometimes the Msvcr71.dll file is also deleted which is associated with two applications on your PC. So, when you try to run the other application you come across the Msvcr71.dll error on your system. The error also occurs when you try to install new programs or update the old program versions. This also misconfigures the DLL files and results in the Msvcr71.dll error. Msvcr71.dll error messages are often displayed as the following:

• “This application has failed to start because Msvcr71.dll was not found.”
• “Mscvr71.dll is a bad windows image. Please check against your installation diskette.”
• “Cannot find [PATH]msvcr71.dll"
• "The file msvcr71.dll is missing."

Solution

Error Causes

Deletion of the Msvcr71.dll file is one cause for the Msvcr71.dll file error. However, this error can also be generated due to other causes such as:

• Corrupt, missing, or misconfigured msvcr71.dll file
• Damaged and missing .dll files
• Corrupt runtime code library
• Registry issues
• Malware attack and viral infection
• Msvcr71.dll error codes usually occur on Windows versions XP and Vista.

Further Information and Manual Repair

Here are different ways to resolve the Msvcr71.dll error code on your system:

1. Reinstall the program/application that is causing the Error to Pop up on the Screen

When this error code occurs due to misconfigured or missing the Msvcr71.dll file, try reinstalling the program/application that is causing the error to pop up on your screen. When doing this, make sure there is no problem with the setup files from the disk you are performing the installation on your PC.

2. Check the Recycle Bin and Restore the Deleted File

If the Msvcr.dll file was deleted accidentally when you uninstalled a program on your PC, then the deleted file is most likely to be in the recycle bin. Check it and if you find it, restore it. Once the file is restored try running the application again.

3. Scan for Malware and Viruses

Install an antivirus and scan for malware and viruses. This software can also corrupt DLL files and runtime code libraries. However, this is not the best solution especially if you already have too many programs installed on your PC. New program installations cause more complications and besides antivirus are infamous for slowing down PC speed.

4. Repair the Corrupt Registry

If the three methods discussed above don’t help you resolve the Msvcr71.dll error code on your system, then this means the cause of the error is more critical than you think. The error is triggered by a corrupt and damaged registry. If this issue is not addressed timely, it can result in system failure and a fatal crash. To resolve the error code Msvcr71.dll, you need to repair the corrupt registry. And the best way to go about it is to download Restoro Restoro is a user-friendly, highly functional, and multi-functional repair tool integrated with high speed and powerful utilities such as a registry cleaner, system stability scanner, Active X and class error module, and an antivirus. It also functions as a system optimizer. It is the answer to your entire PC-related errors and issues. The automated and intuitive algorithm deployed inside this tool enables it to detect all registry errors and issues generating Msvcr71.dll error. DLL files often get damaged due to data overload, disk fragmentation, and malicious files saved in the registry. The registry cleaner removes all the unnecessary and obsolete files from the registry, clears up disk space, and repairs defragmented, damaged, and misconfigured disks. DLL files including Msvcr71.dll and also fixes the registry. It’s an in-built antivirus scan and removes viruses and the system optimizer feature ensures that your PC runs at its optimum speed. It is safe, bug-free, efficient, and easy to use.  It runs smoothly on all Windows versions. Click here to download Restoro and resolve the Msvcr71.dll error on your PC.

Fatal Error c000021a - What is it?

Fatal Error c000021a is a type of Windows stop error also known as the blue screen of death (BSoD) error. When this error occurs, it causes the computer screen to go blue and locks the user out of the current activity. This error code is fatal and can lead to serious issues like system crashes and freeze. The error code is usually displayed in the following format:

STOP: c000021a {Fatal System Error} The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000034 (0x00000000 0x0000000)

Solution

Error Causes

Fatal Error c000021a occurs when the Windows kernel detects that either Winlogon.exe or Csrss.exe service processes have stopped responding or failed to load.  When this happens the error code pops up on the screen. Nonetheless, this is not the only reason for the occurrence of this error. There are plenty more reasons why Fatal Error c000021a may pop on your computer screen. These include:

• Missing or corrupt hardware drivers
• Faulty hardware
• Windows System Restore failed during the rollback process
• Malware or viral infection
• Registry issues

No matter what the reason may be, it is advisable to fix the error right away without any delays. Remember it is a fatal error and can cause a great deal of damage to your PC.

Further Information and Manual Repair

Fatal Error c000021a is a serious PC issue but this does not mean you have to hire an expert to get it fixed. The good news is that this error is actually quite easy to resolve. You don’t have to be a technical whiz or a computer programmer to fix Fatal Error c000021a on your PC. Here are some do it yourself methods to fix this error code right away without any hassle: Let’s get started:

Method 1: Update Your PC Drivers

As we mentioned about corrupt or missing drivers can be one of the many reasons for the occurrence of this error. So, check the drivers first. Perform a driver scan and make sure all your drivers are updated.

Method 2: Perform a Windows System Restore

To do this, first launch Task Manager by pressing CTRL+SHIFT+ESC on your keyboard. Now click on the application tab and then click ‘New Task’ then browse. After that, go to C:\Windows\System32\Restore  folder and then double click the rstrui.exe file. This will help start system restoration. Your computer will reboot during the process and hopefully, the error will be resolved. Nonetheless, if the error still persists then try methods 3 and 4.

Method 3: Scan for Viruses

Sometimes Fatal Error c000021a may also occur due to malware infection. Your PC may be affected by viruses hidden in different locations without you knowing about it. Therefore to resolve this error, it is recommended to run an antivirus and scan for viruses. If detected, remove them right away to fix the error code.

Method 4: Repair the Registry

Another method to resolve Fatal Error c000021a code on your system is to repair the registry. The registry stores all the information and activities performed on the system. If it is not cleaned frequently, it gets loaded with too many files unnecessary and obsolete files like the junk files, cookies, internet history and temporary files which corrupts and damages the registry thereby generating blue screen of death error codes like Fatal Error c000021a. Though you can repair the registry manually it can be both time-consuming and slightly difficult especially if you are not a computer programmer. Therefore it is advisable to download a registry cleaner to fix it right away.

Automatic Repair with Restoro.

Whether the Fatal Error c000021a code occurs due to viral infection or registry issues, download Restoro. This is a next-generation, advanced, and multi-functional PC Fixer. This software is deployed with multiple utilities such as a powerful registry cleaner, an antivirus, a system optimizer, and more. The registry cleaner scans the entire PC and detects all types of registry issues at once. It cleans the registry, wipes out all the unnecessary files, and restores the registry back to normal. Simultaneously, the antivirus embedded in this software detects all types of viruses including malware, adware, spyware and Trojans and removes them in seconds. The system optimizer feature ensures the speed and performance of your PC are not compromised during the repairing process. It ensures your PC works at its optimal speed. Restoro is a one-stop solution for all your PC needs. It has a user-friendly interface making it easy for all levels of users to work around. It is compatible with all Windows versions Click here to download Restoro and resolve the Fatal Error c000021a code on your PC today!

The Adaptive Brightness setting in Windows 10 is a useful setting you can use in adjusting your computer’s brightness. It helps you get the brightness automatically based on the light around your computer. However, there are times when it does not work or it doesn’t turn off when you want it to. If this issue happened right after you update or install Windows 10, then read on as this post will give you a couple of options you can try to resolve the problem.

Option 1 – Try to run the Power Troubleshooter

The first thing you can do to resolve the issue with Adaptive Brightness is to run the Power Troubleshooter as the problem could occur due to some conflicted power settings. To use it, refer to the following steps:

• Open the Windows 10 Settings panel and go to Update & Security and then to Troubleshoot.
• After that, scroll down to your left-hand side and click the Power option.
• From there, you should see the “Run the troubleshooter” button. Click on it to fix the problem.
• Afterward, follow the next on-screen instructions that follow.

Option 2 – Try disabling or turning off the corresponding options in GPU settings

The problem might be due to the Graphics card settings. If you are using either an AMD graphics card or the HD graphics of Intel, you may have to disable the power-related options in the GPU settings. To be specific, you have to disable the Vari-Bright in AMD graphics card settings or the Display Power Saving Technology under Intel’s Graphics panel.

• AMD users:
  • Open the AMD Radeon settings panel.
  • Then go to Preferences. From there, select Radeon Additional Settings.
  • Next, go to the Power tab and click the PowerPlay option.
  • You should find an option called “Enable Vari-Bright” located on your right-hand side. Remove the mark from its checkbox and then save the changes you’ve made.
• Intel users:
  • Open the Intel Graphics and Media Control Panel from your Desktop.
  • Then select the Basic mode and go to the Power tab.
  • From there, select “On battery” as Power Source and then you’ll get the Display Power Saving Technology option. It should be set to enabled by default.
  • Now remove the mark from the checkbox and then save the changes you’ve made.

Option 3 – Try resetting the Power Plan defaults

You might also want to use a command-line tool to resolve the problem. This command-line tool is known as PowerCfg. It is a command utility tool that will scan your computer for 60 seconds to know its power. This tool gives detailed results in the form of an HTML report that will help you in evaluating the real cause of the battery drain issues. You can also use this tool to reset the Power Plan defaults of your computer. To use it, follow the steps below.

• Open the Command Prompt as administrator.
• Then type in the following command and tap Enter to execute it:

powercfg –restoredefaultschemes

• After the command has been executed, restart your computer.

Option 4 – Try updating your Graphics drivers

• First, boot your computer into Safe Mode.
• After that, tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. From there, look for the Display Adapters and click on them.
• After that, right-click on each entry under the Display Adapters and select the “Uninstall Device” option from the menu.
• Now restart your computer.
• After restarting your computer, go to the Settings app and Check for Updates in the Windows Update section.

Note: You also have the option to go directly to the website of your graphics card manufacturers like NVIDIA, Intel, or AMD and go to the section called Drivers then check if there’s a new available update – if there is, download and install it.

Option 5 – Try disabling adaptive brightness via Registry Editor

Since you will be dealing with Registry files in this post, you need to create a System Restore point first. Once you have that covered, proceed to the following steps:

• Tap the Win + R keys to open the Run dialog box.
• Next, type “regedit” in the field and hit Enter to open the Registry Editor.
• After that, navigate to this path: HKEY_LOCAL_MACHINESOFTWAREIntelDisplayigfxcuiprofilesMediaBrighten Movie
• Now double click on the “ProcAmpBrightness” and set its value to “0”.
• Now go to this path: HKEY_LOCAL_MACHINESOFTWAREIntelDisplayigfxcuiprofilesMediaDarken Movie
• From there, double click on “ProcAmpBrightness” and set the value to “0”.
• Then close the Registry Editor and restart your PC and then see if the problem’s fixed or not.

If you suddenly encounter Activation Error codes such as 0xC004E016, 0xC004F210, 0xC004F034, and 0xC004F00F on your Windows 10 computer, then they all point to the same issue – Invalid Product Key or Version mismatch. When you see any of the aforementioned error codes above, it indicates that you are either entering a wrong product key or you are using an incorrect ISO when installing it on your computer. In such cases, you may see either of the following error messages:

“You are running Windows 10 Pro, but you have a valid digital license for Windows 10 Home.” Or: “The specified product key is invalid or is unsupported by this version.”

If you got the error code 0xC004F00F then it means that you’ve entered a product key for the Enterprise edition of Windows to activate Windows 10 Pro or Windows 10 Home. It could be that you have a key from your work and you accidentally use it on your Home PC. If you got the error codes 0xC004E016, 0xC004F210, then it means that you have entered a product key that is meant for a different edition or version of Windows. On the other hand, if you got the error code 0xC004F034 instead, then it means that you have entered an invalid product key or a product key for a different Windows version. Whichever error codes you have, refer to the possible solutions given below to fix the Invalid Product Key or Version mismatch Activation Error in Windows 10.

Option 1 – Try running the Windows 10 Activation Troubleshooter

The first thing you can do to resolve this Activation error is to run the Windows 10 Activation Troubleshooter. 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.

Option 2 – Try purchasing a new license

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 to 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.

Option 3 – Try activating Windows 10 via 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.

If you are trying to log into your user account on your Windows 10 computer but encountered an error message instead that says, “Your account has been disabled, Please see your system administrator”, read on as this post will guide you on how you can fix this problem. In this kind of scenario, you won’t be able to access your data unless you have access to the administrator account. This problem could be caused by several problems. It is possible that malware has infected your computer and has changed some settings in your computer, especially if your system has been under a malware attack not too long ago. The malware could’ve changed the “Account is disabled” option. The only thing you can do to resolve this kind of problem is to log into your computer using another administrator account and then change the setting. However, if you don’t have a second administrator account, you can just enable the built-in hidden administrator account on your computer. You shouldn’t have any problem enabling the hidden administrator account as it is quite easy when you can log into your account. And in this post, you will be guided on how you can enable the hidden administrator account using the Registry Editor to fix the “Your account has been disabled, Please see your system administrator” error.

To get started, follow the instructions given below.

1. First, you need to start your computer and ensure that you are on the error screen. From there, you will see the Power options located on the right-hand side.
2. Click on the Power options and tap and hold the Shift key and then select Restart.
3. After that, the Advanced Boot Options will appear and from there select Troubleshoot > Command Prompt.
4. Next, you have to select your user account and enter the user account’s password to open Command Prompt.
5. After opening Command Prompt, open your screen and type “Regedit” and then tap Enter on your keyboard.
6. Now select the HKEY_LOCAL_MACHINE in the Registry Editor and go to File > Load Hive.
7. Afterward, you have to open the Windows installation drive and go to the location – WindowsSystem32Config
8. From there, you should find a file named “SAM” – select this file and click the Open button.
9. Next, you have to enter a key name. You can just input whatever you prefer.
10. Once done, navigate to this path: HKEY_LOCAL_MACHINEkey_nameSAMDomainsAccountUsers
11. From this path, you will see a key named “000001F4” – select this key and double click on the “F” entry that you can find on the right-hand side of the screen.
12. After that, look for the value data line labeled “0038” which should show 11 in the first column. You have to replace it with 10.
13. Once done, click on the OK button and close the Registry Editor and the Command Prompt to restart your computer.
14. Now once your computer has restarted, sign in to the Administrator account and open the Computer Management window. You can just search for it using the search bar in the Taskbar.
15. After you open Computer Management, go to Local Users and Groups > Users – where you can find all the user accounts. Look for your deleted user account and right-click on it and select Properties and then unmark the checkbox that says “Account is disabled”. This should fix the problem.