After uninstalling software, these reg entries are persistently appearing recurrently on each run of the reg cleaner. I've tried deleting these entries manually via reg editor but the erro cannot delete key prevents them from being removed? Is there a solution? Unused File Extension .vp6 HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.vp6 Unused File Extension .tpr HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.tpr Unused File Extension .qt HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.qt Unused File Extension .pva HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.pva Unused File Extension .pss HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.pss Unused File Extension .mpv HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.mpv Unused File Extension .dal HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.dal Unused File Extension .da HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.da Unused File Extension .cue HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.cue Unused File Extension .bik HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.bik Unused File Extension .avs HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.avs
Remove them from a Linux LiveCD where the Windows OS is just on a drive. There's no permissions or anything else to battle since you're not in Windows. Fix the Windows Registry from a Linux Thumb Drive Or 4 Ways to Edit Registry Key Values Without Booting into Windows https://www.raymond.cc/blog/how-to-edit-windows-registry-key-values-without-booting-in-windows/
You can use Sysinternals PsExec to open regedit as system. https://www.wilderssecurity.com/threads/w7-help-me-to-delete-these-keys.293664/#post-1836864 The batch file I use is a little simpler but it works. Just make sure to run the batch file as admin. Of course change the batch file to match the directory you place PsExec in. Start "" "E:\Utilities\PsExec\psexec.exe" -i -d -s c:\windows\regedit.exe Especially useful for deleting remaining legacy registry entries left over from removed anti-malware programs.
