today I noticed my eset smart security didn't update after the latest patchday. even I noticed it's impossible to uninstall programs. the uninstall fails with the same error repeatedly: sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth doesnt't show any effect on this errors. guess they messed the windows installer now, anyone else?
That would likely be a problem with the software you are trying to install, and not Windows. You might try their support forum.
same error when I tried to uninstall virtualbox and even the same as I wanted to install avg free 2015 doesnt even install new updates:
Are you sure you don't have any malware or rootkits installed? Have you been running any suspicious exe files lately?