Windows uses 2 types of keys for its activation, KMS or MAK. These keys should work without any issues since they are elevated with higher permissions but in some cases, they are by accident run without their proper permission, and then we have access denied error or error 0x80070005
To resolve this issue please first check if not by any chance your antivirus or firewall is preventing slmgr.bs file to access the right permissions, that being said if the previous solution is not working note that you have to be an administrator of the system or have administrator privileges. As an administrator, you will have to use Software Licencing Management Tool or short SLMGR.VBS, a VBS file in Windows used for its activation purposes.
As an administrator, open Command prompt with admin permissions and then run slmgr.vbs
This will make sure that activation goes through, make sure to use proper options like:
/ipk <ProductKey> or /ato [<Activation ID>]

Error Causes
Windows 11 provides several different ways to make your cursor stand out and be easier to spot inside it. You can make the mouse pointer larger, invert it, or change its color.
“The boot configuration data store could not be opened”while you try to carry out any command on the bcedit.exe, then you’ve come to the right place as this post will guide you on how you can fix this error in Windows 10. This kind of error could pop up if the system is not able to locate the specified file. It is also possible that the requested system device can’t be found or that the boot configuration data store could not be opened. In addition, when you open the System Configuration or MSConfig, you might notice that there is no Boot data, and according to the reports, is that when you try to dual boot the computer, the installer will replace the default bootloader.
“Secure Boot Violation The system found unauthorized changes on the firmware, operating system, or UEFI drivers. Press [OK] to run the next boot device or enter directly to BIOS Setup if there are no other boot devices installed. Go to BIOS Setup > Advanced > Boot and change the current boot device into other secured boot devices.”This kind of error message pops up due to the Secure Boot that protects your computer from running any non-OEM signed boot software during startup. In other words, the Secure Boot firmware is the one that scans for non-signed boot software each time your computer boots up and if it detects anything strange, it will block the boot and will display the error message. To fix this error, there are two things you can try. You can try to disable the Secure Boot or try using a System Restore Point. For more detailed instructions, refer to each one of the options provided below.
“We couldn’t install Windows in the location you choose. Please check your media drive. Here’s more info about what happened: 0x80300002”You can encounter this kind of error if there is corruption in the partition table of the drive where the installation is in progress. In addition, corruption on the Media device could also cause this problem. So if you encounter this error when running Windows Setup, read on as this post will guide you in fixing it. There are several ways to resolve this issue. The first thing you can do is to verify the compatibility between the BIOS and the installation media. You could also try recreating all the partitions as well as recreating the bootable USB drive. For more detailed information, follow the given options below.
Error CausesError 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.
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:
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.
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.
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.
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.
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.
RegClean Pro is a program developed by Systweak Inc. RegClean Pro cleans such invalid registry errors using its advanced scan engine. It not only fixes invalid registry entries, it also defragments the registry, keeping it streamlined for smoother system performance.
RegClean Pro defines auto-start registry entities that allow the program to run each time the system is restarted, it also adds various Scheduled tasks in Windows Task Manager in order to launch the application at various times. This application has been found bundled up with various other potentially unwanted applications, also several anti-virus programs have detected this application for optional removal.