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BetterRed · 10-14-2017, 05:09 PM

@stewart_campbell - If those old versions are showing up in Control Panel->Programs and Features try this:

Download the msi for 3.2.1 from here. Run the msi and chose Remove. If that works -- i.e. calibre 3.2.1 disappears from CP->Programs and Features -- repeat for 3.3

If it doesn't work try using a lightweight registry cleaner

@theducks - if they are portables then the Windows Trusted Installer subsystem wouldn't know about them. It's a pretty safe bet that WTI is issuing the message.

@JSWolf - as of a few months ago the likes of HP were selling 2GB laptops with 32bit Win 10, I suspect they still do.

BR

10-14-2017, 05:09 PM	#4
BetterRed null operator (he/him) Posts: 21,786 Karma: 30237628 Join Date: Mar 2012 Location: Sydney Australia Device: none	@stewart_campbell - If those old versions are showing up in Control Panel->Programs and Features try this: Download the msi for 3.2.1 from here. Run the msi and chose Remove. If that works -- i.e. calibre 3.2.1 disappears from CP->Programs and Features -- repeat for 3.3 If it doesn't work try using a lightweight registry cleaner @theducks - if they are portables then the Windows Trusted Installer subsystem wouldn't know about them. It's a pretty safe bet that WTI is issuing the message. @JSWolf - as of a few months ago the likes of HP were selling 2GB laptops with 32bit Win 10, I suspect they still do. BR Last edited by BetterRed; 10-14-2017 at 05:15 PM.