Fix Microsoft Store error 0x80072F30

Outlook PST Mailbox Errors Malfunctions

Can you use an MS-Outlook e-mail account to send and get workplace e-mails on a daily basis? Are you using the exact same Outlook e-mail account for a long time? Are you getting PST Mailbox Errors? Then you have developed awareness and knowledge about Outlook PST Errors. Ms-outlook essentially stores the email items in a PST record. This includes all attachments, contacts, calendar items, your e-mails and records. You might encounter various kinds of Outlook Inbox error messages exhibited on the display in extended formats eg. 0x80040600 0x8004060c or 0x80040116. All all these are Outlook mailbox malfunctions that stop the Outlook program from executing jobs correctly and thus restricting your capacity to gain access to your e-mail account, see attachments, contacts, and calendar items that are significant.

Error Causes

There's not a single particular trigger for Outlook email malfunctions. A few causes can trigger these, but, the most frequent are virus contamination, 2 GB limit is exceeded by PST file and broken. There are no specific signals which will help help you identify but some pointers to look at include the following:-

• You cannot access certain parts of your Outlook interface
• Obscure error messages start popping on your screen
• You can’t add new contacts or change entry data in your calendar

Further Information and Manual Repair

When you experience these signs related to PST Inbox errors, it is advisable to repair the problem immediately to ensure it does not cause inconvenience for you and hampers your communication via Outlook emails. Remember this error not only inconveniences you but also hinders proper communication between various business partners. Determining the ultimate reason for distinct Outlook email malfunctions could be tricky, time-consuming, and might need specialized knowledge to nail it down with regards to fixing the Outlook mailbox malfunctions. In case you are not a specialist, working out and fixing this problem is an uphill process. To simplify this process, obtain and install an Outlook PST Repair Tool! This is an intelligent solution to fix all kinds of Outlook errors. You do not have to go deeper into the technical details of the problem. The Outlook PST Repair tool does it for you. An inbox repair tool identifies and also repairs all sorts of MS Outlook errors in seconds. It is easy to use, highly functional, safe and efficient. By installing an Outlook repair tool, Outlook errors can be easily removed from your computer and keep the errors from happening again. It also fixes damaged PST files and damaged e-mails can help regain data. Whatever you should do is to begin:

1. Click here to download the inbox repair tool
2. Install the software on your system
3. Run it and click restore to resolve Inbox errors

In case you don’t know, Windows contains a feedback mechanism that generates error reports from hardware and software problems. These reports are temporarily stored in the system and send them back to Microsoft so that it can find solutions to the reported problems and fix them in the upcoming updates.  However, as time goes by, these reports actually take a lot of space in your computer which is why end-users like you are free to delete them with the help of the new Free Up Space feature in Windows 10. As useful the Free Up Space feature may be, there are times when you won’t be able to use it for some reason which is why in this post, you will be guided on how to use alternative ways in deleting very large System queued Windows Error Reporting file, some of which may run in Gigabytes. Every time the Windows Error Reporting or WER sends out an error file and looks for a solution, the WER server at Microsoft sends out a solution instantly. And if the solution is under investigation or is unknown, then you will be notified about it right away and will be asked for more details. As mentioned, even though the Free Up Space feature in Settings will be able to clear the error reporting files, there are instances when it won’t be able to delete very large System queued Windows Error Reporting files. Alternatively, there is an option to delete these files using the Disk Cleanup Utility. Feel free to select which option you’d like to use to get rid of Windows Error Reporting Files.

Option 1 – Delete Windows Error Reporting Files via Settings

• Go to Settings.
• From there, go to System > Storage > Free Up Space and then click on it to launch it.
• Afterward, give it some time to populate all the files and folders. Once it’s done, select “System created Windows Error Reporting files” to mark its checkbox while leaving the other options unchecked.
• Next, click on the Remove files button to delete all the Windows Error Reporting files from your computer.

Option 2 – Manually delete the Windows Error Reporting Files

• Tap the Win + E keys to open File Explorer.
• Next, enable the Hidden Files view from the menu.
• Then go to C:/ProgramData/MicrosoftWindowsWER.
• From there, you will see various folders like LocalReportArchive, ReportArchive, ReportQueue, and Temp.
• Open each one of the aforementioned folders and delete the archive files. Note that these files will have names similar to “00c58c1f-b836-4703-9bcf-c699ca24d285”.

Note: If you are not able to delete any of these files, you have to take ownership of the folder. To do so, refer to these steps:

• Right-click on the folder and then select Properties.
• Next, click on the Edit button in the Properties window and click OK to confirm if you got a User Account Control elevation request.
• After that, select user/group from the permission windows or click on the Add button to add another user or group. It would be best if you add “Everyone” to give permission.
• Then check “Full Control” under the “Allow” column to assign full access rights control permissions.
• Now edit the permission to Full Control for “Everyone”.
• Click OK to save the changes made and then exit.

On the other hand, if you do not want to go through all these troubles in deleting the Windows Error Reporting files, you can just disable it especially if it already becomes a daily annoyance as the files generate every day and their sizes are mostly gigabytes. And besides, there are times when these files do not make it to the Microsoft WER server and end up only occupying a lot of space for nothing.

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 10, device manager code occurs when Bluetooth or Wi-Fi cannot be enabled. Inside device manager beside device would be yellow exclamation sign and if you go into device properties status would be: This device cannot start. Following are proven solutions that will resolve the issue and provide you with a working device.

Reboot PC, check for switch

This simple solution can usually work in most cases, first thing is to check if by any chance hardware switch for Wi-Fi or Bluetooth is OFF (laptops have a small switch that can turn the device On or OFF), then if you do not have a switch or you made sure it is ON, reboot your system.

Run Network Adapter Troubleshooter

If previous simple step solutions have not proven to be effective run Network Adapter Troubleshooter

1. Press WINDOWS + I to open settings
2. Go to System > Troubleshoot > Other troubleshooters
3. Inside Find Network Adapter
4. Click on Run to start the troubleshooters

Disable and then re-enable Adapter

If the previous solution has not fixed the issue try disabling the adapter and then re-enabling it back.

Update network adapter

Go to the intel website and download the latest driver package. After the download is finished install the latest driver.

Turn ON the WLAN AutoConfig service

1. Press Windows key + R to invoke the Run dialog.
2. In the Run dialog box, type services.MSC and hit Enter to open Services.
3. In the Services window, scroll and locate the WLAN AutoConfig service.
4. Double-click on the entry to edit its properties.
5. In the properties window, click the drop-down on the Startup type and select Automatic.
6. Next, make sure the Service status is started and running.
7. Click Apply > OK to save changes.
8. Exit Services console.
9. Restart PC.

Both the Windows 10 and Windows Server operating systems have a number of common system files that vary from the ones that support the installation, boot process, and other operations or tasks in the system. However, if any of these files get corrupted, it might cause some errors during the setup of the Windows 10 operating system. One of these errors is the “Windows cannot find the Microsoft Software License Terms” error.

“Windows cannot find the Microsoft Software License Terms. Make sure the installation sources are valid and restart the installation.”

The only option given when you encounter this error is to click on the OK button and nothing else and then the setup gets interrupted and won’t push through. To fix this error and proceed with the installation, you can try to get a new installation image or switch ports, or fix the CFG file. For more details, follow each one of the potential fixes provided below.

Option 1 – Try to get a new installation image

It is possible that there might be some issues with the installation image. It could be corrupted or was modified illegally. Or it could be that the bootable storage device created might have damaged sectors or installation. To resolve this problem, you need to download a fresh copy of the Windows 10 installation image using the Windows Media Creation tool or simply use the ISO image separately and then build a bootable USB.

Option 2 – Try to switch Ports

The error might be caused by the connection to the USB port. It could be that the port is unstable due to a number of factors that resulted in the interruption of the installation process. To fix this problem, you can try switching the USB port or if you are using an optical drive, you can get an external USB optical drive or connect it to another port internally and see if it fixes the problem.

Option 3 – Try to fix the CFG file

If none of the first two options worked, then you might want to fix the CFG file. This file is a configuration file format used for storing settings. All you have to do is download the CFG file. Once you’ve downloaded this file, copy this file to the root of your bootable drive and then check if it fixes the error. If not, then try to copy the same file inside the “/sources/” folder inside the root of the drive. This should fix the error.

The Control Panel is one of the most important tools in Windows which allows users to control and change various settings. However, there are cases when it experiences some problems like when users aren’t able to open it. Recently, a lot of users complained about not being able to open the Control Panel. To be more specific, users were able to open it but only lasted for a second, and then it’s gone. This is not just some issue you can ignore as this will prevent you from accessing some major settings in your computer and you won’t be able to perform some important task without it. According to security experts, this issue is most likely caused by a bug in the Windows Update. If you have installed an update recently, then it’s most likely the culprit. Aside from the Windows Update, there are also other things that can cause this issue. Some of them are the IDT audio panel and a control panel file that causes conflicting issues with the control panel that leads to this problem. Aside from these aforementioned cases, the Windows Error reporting services could also be one of the causes of this issue. As you can see, since there are a lot of possible causes for this problem, this post prepared a lot of options as well which you have to check out. Follow each one of them and see which one worked best for you.

Option 1 – Try updating your Windows 10 PC

If you haven’t updated your PC to the latest version of Windows 10, then you should. A lot of users found that the issue with the Control Panel was fixed right after they updated their Windows 10 PCs. This is probably because Microsoft has probably released a fix on one of the latest updates.

Option 2 – Try uninstalling the IDT Audio Panel

For some users, uninstalling the IDT Audio Panel from their PCs did the trick. You can also try doing the same thing to fix the vanishing Control Panel. According to these users. The IDT audio panel was the one that’s causing the issue. To uninstall the IDT audio panel, here’s what you have to do:

• Tap the Win + R keys at the same time to open the Run dialog box.
• Then type in “appwiz.cpl” in the field and tap Enter to open the “Uninstall or change a program” screen of the Control Panel.
• From there, look for the IDT audio panel, select it and then select the Uninstall option and follow the next on-screen instructions that appear.

Note: If you are unable to locate the IDT audio panel or you simply can’t access the Uninstall or change program screen or you can’t keep Control Panel open for a long time, here’s what you can do:

• Tap the Win + R keys at the same time once again to open the Run dialog box.
• And in the field, type in “devmgmt.msc” and hit Enter to open the Device Manager.
• After opening the Device Manager, look for the “Sound, video and game controllers” option and double-click on it.
• From there, locate the IDT audio panel or “IDT High Definition CODEC” and select Uninstall and follow the next instructions that appear.

Option 3 – Try deleting or renaming IDTNC64.cpl

IDTNC64.cpl is a control file in the control panel. However, it might be the one that’s causing the problem as it could be conflicting with the control panel. As a result, the control panel crashes after a second or more. Many users have fixed the problem by either renaming or deleting this file – the safer option would be is renaming it.

• Tap the Win + E keys to open File Explorer.
• In the address bar located at the top, type in “C:\Windows\System32” and tap Enter to open this folder.
• From there, look for the IDTNC64.cpl file, right-click on it and select the Rename option.
• You can name the file anything you want but it’s better if you rename it to “oldcpl”.
• After you rename the file, try opening the Control Panel again. It should work fine now.

Option 4 – Try to disable the Windows Error Reporting Service

As mentioned earlier, the Windows Error Reporting Service is also known to cause the issue so some users disable it and got the issue fixed.

• Tap the Win + R keys.
• In the field, type in “MSConfig” and hit Enter to open System Configuration.
• After opening System Configuration, go to the Services tab and look for the Windows Error Reporting Service and uncheck its checkbox.
• Click the Apply button and click OK. You should now see a date in the Disable Date column. Then check if the Control Panel is now working properly if not, restart your computer and check once more. That should fix the problem.

Option 5 – Try opening Control Panel via Run

This option is more of a workaround than a solution as it does not really fix the issue with the Control Panel but rather helps you in accessing the controls at the very least.

• Tap the Win + R keys to open Run.
• Type in “appwiz.cpl” in the field and tap Enter to open the Uninstall or change program screen of the Control Panel.
• Next, copy and paste “Control panel all control panel items” on the address bar located at the top-mid part of your screen. You must not type the given address and simply copy and paste it. After that, you will see a list of control panel controls you can use.

DLL files, also known as Dynamic Link Libraries are external parts of applications that run on Windows as well as other operating systems. Almost all applications are not complete in themselves and store code in different files. In this post, we will be discussing one DLL file called ntdll.dll. It is described as “NT Layer DLL” which means that it contains some Kernel functions that help in the normal functioning of the Windows operating system. It is created by Windows in the System32 folder when the OS gets installed. This file can serve different programs simultaneously by providing them with different Kernel functions which support the programs’ performance. However, if you encounter the ntdll.dll file error on your Windows 10 computer, read on as this post will guide you in fixing the problem.

Option 1 – Try to re-register the ntdll.dll file

You may have to re-register the ntdll.dll file using the regsvr32.exe before you can successfully install the program and fix ntdll.dll file crash error. The Regsvr32 tool is a command-line utility that can be used to register and un-register the OLE controls like DLL and ActiveX (OCX) control in the Windows operating system. Follow the steps below to use it.

• Open Command Prompt as admin from the WinX menu.
• Next, type the following commands in the elevated Command Prompt and hit Enter to execute the command. This will re-register the affected DLL file using the Windows operating system tool, regsvr32.exe.
  • exe /u ntdll.dll
  • exe ntdll.dll
• You should see a message saying, “DllRegisterServer in vbscript.dll succeeded” if the Regsvr32 tool was able to run successfully. After that, try to install the program again and see if it now works.

Option 2 – Disable problematic Internet Explorer add-ons

There are instances when some add-ons in the Internet Explorer browser can cause the ntdll.dll file crash error. Thus, you need to disable some add-ons in Internet Explorer and then check if it fixes the problem.

Option 3 – Try running the DISM tool

You might want to repair potentially corrupted files in your system as having them could also trigger the ntdll.dll file crash error. To repair these corrupted system files, you can run the DISM commands:

• Tap the Win + X keys and click on the “Command Prompt (Admin)” option.
• After that, input each one of the commands listed below sequentially to execute them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • Dism /Online /Cleanup-Image /RestoreHealth

• Once you’ve executed the commands given above, restart your computer and check if the DCOM error is now fixed.

Option 4 – Try to run the Program Compatibility Troubleshooter

You might also want to run the Program Compatibility Troubleshooter. This built-in troubleshooter is available in the Windows Update & Security section. From there, select Troubleshoot. This will find a list of programs for you and since you have already downloaded the driver files, just click on Not Listed located at the top of the program list. After that, browse and select the driver files and then let the program do its job.

Option 5 – Try to replace the DLL file with a trusted source

• First, you need to get the new DLL file from another computer with preferably the same file version number.
• After that, you need to boot your PC into Safe Mode and navigate to the paths listed below and then replace the file using a USB drive or other external storage devices.
  • x86: This PC > C:WindowsSystem32
  • x64: This PC > C:WindowsSysWOW64
• Next, type “cmd” in the Cortana search box and right-click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
• Now type the “regsvr32 ntdll.dll” command and hit Enter.
• Restart your PC and check if the error is now fixed.

Option 6 – Try scanning your computer using Windows Defender

The ntdll.dll file crash error might also be infected with malware or virus and to eliminate it, you have to scan your computer using security programs like Windows Defender.

• Tap the Win + I keys to open Update & Security.
• Then click on the Windows Security option and open Windows Defender Security Center.
• Next, click on Virus & threat protection > Run a new advanced scan.
• Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.

Error Code 0x80240016 - What is it?

Error Code 0x80240016 is an error that appears when the Windows Update tool is unable to complete its operation. While it most commonly occurs in Windows 10, versions of this error are also present in past Windows systems, as well. The steps to resolve the error are the same for each of these systems. Common symptoms include:

• Inability to complete the Windows Update process
• Sluggishness or freezing
• Crashing of your programs
• The message that states “IMAP_LOGINFAILURE”

There are a number of different issues that can cause Error Code 0x80240016, so it is important to follow the steps below to address each of them in turn. While basic users can implement several of the methods, some of the methods may require advanced skills or knowledge. If needed, always get in touch with a qualified Windows repair professional to assist you in the process of error resolution.

Solution

Error Causes

Error Code 0x80240016 happens when the system believes that another installation is already occurring on your device while the Windows Update tool is attempting to run the installation of its own updates. While there may not always be an actual installation going on that prohibits Windows Update from running, several programs can leave traces of background activity that prevent Windows from proceeding as necessary.

Malicious software can also cause your system to believe that files are in use, so several of the methods to fix the error can address this particular set of issues.

Further Information and Manual Repair

There are a number of different background issues that can cause Error Code 0x80240016 to appear on your machine. Follow the steps below to address each aspect of the error code, making sure to restart your computer after each attempt. If you have difficulty in completing these steps, contact a qualified technician to assist you.

Here are the top methods to resolve Error Code 0x80240016:

Method One:  Use the Troubleshooting Tool in Windows Update

The first step to addressing Error Code 0x80240016 is to open up the Windows Update tool and click on the option to run the Troubleshooting Wizard. This can identify many of the issues associated with the error. If this tool makes any changes, make sure to restart your computer after it finishes.

Method Two:  Run the Registry Repair Tool

The registry repair tool can be a great resource for Error Code 0x80240016. Use it to run a scan on all of your registry entries and to repair any that may be extraneous, faulty, or missing. This step may take some time, so be prepared to wait a while for it to finish. Always restart your computer after running the registry repair tool so that any necessary changes can fully take effect and be recognized by your device.

Method Three:  Scan Your Computer for Malicious Software

Use the Microsoft Security Essentials tool to perform a scan of your computer to see if any malicious software has changed or corrupted your system files. Once all the files had been scanned and problems have been addressed, you can restart your computer to see if the error has been successfully resolved. You can also download a powerful automated tool to rectify Windows 10 error code 0x80240016.

Method Four:  Update Your Drivers and Perform Updates for Your Software and Operating System

Another method that can help to address Error Code 0x80240016 is to open up your driver settings from the control panel and scan to see if any updates are needed. If there are updates waiting to be installed, go ahead and perform those updates first, then restart your computer.

Next, check your Windows Update tool to see if there are any program or system updates that need to be performed. Allowing updates to stack up can cause a number of errors on your system, so it is important to keep your updates in check. Restart your computer after you finish this process.

Method Five:  Backup Your Files, Then Reinstall Your Operating System Version

If none of the above methods have completely fixed the problem, you may need to reinstall your operating system. Before doing so, make sure that you have a backup copy of any important programs and files so that you don’t lose anything during the fresh installation.

A very serious data breach has happened to the unfortunate GoDaddy hosting service placing a little over 1.2 million accounts affected. Security breaches sadly are not a rare occurrence but this time it is a little different. Each time when the company is breached data is stolen and that places the company in a bad light usually because its user database has been compromised and people are concerned about their data being misused. This is very rational fear and concern but this time things are a little bit different than usual, why is that, you might ask? Well, as before mentioned GoDaddy is a hosting company and the vector of attack was aimed at the part where it is hosting WordPress. Attackers were able to get their hands on the sFTP credentials of customers on that server meaning that all of the websites are also been relieved of their user base as well. This potentially means that there is a high chance that all of the hosted web site's content is also compromised, meaning that your data could also be compromised even if you were not a GoDaddy customer, all you needed to do is to be a member of any site hosted on their platform. GoDaddy has reset WordPress passwords and private keys, so it’s already taken the steps required to stock the attacker from exploiting anything with the passwords obtained. The company is in the process of generating new SSL certificates for customers. Bad thing is that the attack used a compromised password to get into systems all the way back around September 6^th, 2021, the breach was discovered on November 17^th, 2021, which is more than a 2-month active time where the attacker could harvest tons of data. The outcome of this attack will be seen in the upcoming time, until then be safe, and Just in case change your passwords.

Stop C00002lA Fatal System Error- What is it?

C00002lA Fatal System Error is a blue screen of death error that may occur when you start your Windows NT 4.0 based computer. This error causes the screen to turn blue and the system also shuts down. The stop C000021A error message is displayed in the following format:

Stop c000021a {Fatal System Error} The session manager initialization system process terminated unexpectedly with a status of 0xc0000017 (0x00000000, 0x0000000) The system has been shut down.

Error Causes

The stop C000021A error occurs when either Crsrss.exe or Winlogon.exe fails. When the Windows NT kernel identifies that either of these processes has failed, it stops and the error code stop C000021A appears on the computer screen. Here are some of the underlying causes for the stop C0000021A error:

• The incompatible third-party program
• Hard disk issues
• Service pack installation has failed
• Mismatched system files have been installed
• Bad and invalid registry keys

Further Information and Manual Repair

To resolve the stop C000021A Fatal System Error on your PC try the following solutions:

• Remove Incompatible Third Party Programs

If the error occurred after you recently installed a new program, then it is advisable to remove that program. The error occurs due to the incompatibility of the program. To remove the program go to the start menu and click on the control panel. Now click on Add/Remove Program tab and double click on the program name that you recently installed and remove it from the list. Once removed, not reboot your PC. Reinstall a compatible program and run it. It is most likely to resolve the issue. However, if the stop C000021A error still occurs, then it means the problem is critical. It is related to the registry.

• Repair and Restore the Registry

This procedure is slightly long and tricky. To try it, you need to be technically sound. Here’s what you have to do: first create a parallel installation of Windows NT. Start your PC to the parallel installation and then open the Registry Editor. On the Registry Editor’s Windows menu click HKEY_LOCAL_MACHINE on Local Machine and then click Load Hive. Now type the path %systemroot%system32configsystem into the System hive of the prior installation. Then click open. Here you will be prompted to enter the name of the key, type TEST. Note the setting for the current DWord value in the preceding registry key. This is 0x1 and is denoted by CURRENT:Reg_Dword: 0x1. This value indicated that the Current Control Set for your original Windows NT installation corresponds to ControlSet001 in this window. Now if the value is 2, it indicated that the Current Control Set corresponds to ControlSet002. Now locate the following registry key: HKEY_LOCAL_MACHINETESTControlSetXXXControlSession Manager. XXX is the Current Control Set Value. And delete any pending file rename operation entries. Then click TEST hive and then click Unload Hive. After that again repeat the process, open the registry menu and click load hive, here type the path %systemroot%system32configSoftware to the Software hive of the prior installation and then click open. Now you type TEST 2 when you are prompted for the name of the key. Remove any pending file rename operations entries in the following registry keys: HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnce HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnceEx Now click TEST2 hive and then click unload hive. Quit the Registry Editor and then restart your original installation. This will resolve the stop C000021A error.