You may receive a Windows Error Code 0x80070643 while installing certain applications on Windows 11/10/8/7. Some users face this error while installing .NET Framework or other programs. This post will show you how you can try and fix this Windows error. At the end of the installation you may receive an error message: These programs could not be installed.

Error 0x80070643, These programs couldn’t be installed
I suggest you try the following steps to redress the issue:
Make sure your .NET Framework is up-to-date and try again.
If that does not help, use Microsoft .NET Framework Setup Cleanup Tool to remove your.NET versions.
If you find that your green animation bar progresses up to a certain stage and reverses back again, the installation has again failed. You may or may not get an Error Code 0x80070643 at the end. This may occur when the installers have insufficient privileges to modify a file or a folder.
To resolve this issue, Open Explorer and go through Organize > Folder Options > View > Choose to show hidden and system files & folders.
Next, navigate to C:\ProgramData\Microsoft\IdentityCRL and take ownership of this folder. You can add this Take ownership command easily using our Ultimate Windows Tweaker.
Try again now. It should work!
If it occurs for any other software, download and install its current version of the software, and use your junk registry cleaner like say, CCleaner to clear residual registry entries. Try to install it again using the Installer this time.
Related:
how to repair the printer spooler problem
Need to know the specific problem. But you can try the Print Spooler Cleanup Diagnostic Tool http://forum.thewindowsclub.com/downloads-windows/35339-print-spooler-cleanup-diagnostic-tool.html
As with all all other so-called “solutions,” this does not work. Sorry, but this is an unsolvable problem that even Microsoft support does not understand.
I’ve tried absolutely everything, uninstalled half of my computer but it still won’t install MSSE…why is there no fix for this. Tired of Windows, might try Linux for a change, it can’t be any worse :*(
So where does one go Kevin…it gets ridiculous with Microsft some times. i really do despair of them.
TOO MANY ERRORS IN WINDOW$!
Well… it’s simple. Try another source. How I see it, if you’ve tried a procedure online but that one doesn’t work, look elsewhere! Clearly, Microsoft does not have all the answers. In fact, whenever I’m having problems with my computer, they’re not my first cup of tea. My first preference is Errortools and if they don’t have what I want, I turn to Google and scan through the results like a hungry dog. It is time we realize that the most Microsoft support will do is to encourage us to buy a new computer. It happens all the time!
Well I had my McAfee Enterprise installed at the max security level. I disabled the Access Protection and tried again. It installed right away.
Don’t forget to re-enable the protection once your done.