Quote:
Originally Posted by BetterRed
If calibre is running from a portable install the msi installer won't run 'properly' either. IIRC it pops a Cancel, Retry, Continue query, with warning that Continue will necessitate a Windows Restart.
BR
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Exactly. The plugin checks the OS but relies on the user having a standard installation. I've added a clear warning in the confirmation dialog stating that Portable, Flatpak, and AppImage versions are not supported and must be updated manually.
Since those versions don't follow the standard Windows Registry paths for the .msi installer, trying to automate them would lead to the 'Retry/Ignore' errors you mentioned. Keeping it restricted to official standard installs is the safest way to avoid corrupting a user's setup.