Thank you!
Sadly, that did not solve the problem. I started command prompt as administrator, navigated to the folder containing the purge_wb bat file, and ran it. That produced some output, as below (at end). Then I shut down windows 11 and the computer, waited a few seconds, and turned the system back on. Then looked at the event viewer, and there is a new error record after the time I turned the computer back on still mentioning that the windowblinds service could not start.
I do notice, looking at the registry, that there a number of non-muicache related entries still present for windowblinds. Perhaps one of these is at fault? In particular, I notice a key "Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WindowBlinds" which has a child of ImagePath, and that has a string value of "C:\Program Files (x86)\Stardock\WindowBlinds\WBSrv.exe". There is another key "Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WindowBlinds" and another "Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Applets\Regedit". (There are several other mentions of windowblinds in the registry, but these I have called out seem explicitly to mention something about windowblinds service, and are also not part of muicache entries, which latter seem likely harmless). A quick eyeball of the bat file doesn't seem to suggest these entries that I have are targets of the bat file actions.
Are you able to say with confidence if any of these remaining keys would result in still trying to start a now-nonexistent windowblinds service? Are there other keys or items I should look for that would account for my observed "error" events?
Thank you!
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The event, still being raised after wb uninstall and running purge_wb.bat, is of type 7000:
The WindowBlinds service failed to start due to the following error:
The system cannot find the file specified.
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C:\Users\tc\Desktop>Purge_WB.bat
SUCCESS: The process "explorer.exe" with PID 6168 has been terminated.
'"C:\Program Files (x86)\Stardock\WindowBlinds\uninstall.exe"' is not recognized as an internal or external command,
operable program or batch file.
HKEY_CLASSES_ROOT\WbaFile
(Default) REG_SZ
Treatment REG_DWORD 0x3
HKEY_CLASSES_ROOT\WbaFile\shell
The operation completed successfully.
HKEY_LOCAL_MACHINE\Software\Stardock\ObjectDesktop\WindowBlinds
Path REG_SZ C:\Program Files (x86)\Stardock\WindowBlinds
The operation completed successfully.
ERROR: The system was unable to find the specified registry key or value.
HKEY_CURRENT_USER\Software\Stardock\WindowBlinds not found (may have already been removed
ERROR: The system was unable to find the specified registry key or value.
HKEY_LOCAL_MACHINE\Software\ObjectDesktop\Stardock\WindowBlinds not found (may have already been removed
HKEY_LOCAL_MACHINE\Software\Stardock\WindowBlinds\WB5.ini
The operation completed successfully.
ERROR: The system was unable to find the specified registry key or value.
HKEY_LOCAL_MACHINE\Software\Wow6432Node\Stardock\WindowBlinds not found (may have already been removed
ERROR: The system was unable to find the specified registry key or value.
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\WindowBlinds not found (may have already been removed
C:\Users\tc\Desktop>
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(note that this was run with wb supposedly uninstalled prior to run)