I can only wonder if the sqlite database has somehow got corrupted. You could try using the backup and restore feature described here - Use Backup, Restore to move catalog | Organizer | Elements 6 or…

The 32-bit version of PSE13 includes the TWAIN drivers as described in the post I linked to. Look again. -- Neale

I think you will be out of luck. I doubt Adobe will patch software, that is not current, to work with an OS that didn't exist when the product was developed.   Cheers, -- Neale

This happens on older versions when you're using IE 10 or 11. The installer only looks at the first digit of the IE version and thinks you're on IE 1. You can temporarily revert to IE9, install, then…

Support for EPS was dropped in v11. The following workarounds might help (you may need the file EPS Parser.8BY from your PSE9) Open EPS files in Photoshop Elements 11.   Cheers, -- Neale

When I get problems with undeleteable folders or files I use the excellent and free UNLOCKER 1.9.2 BY CEDRICK 'NITCH' COLLOMB utility.   Cheers, -- Neale

From version 12, you can install PSE on as many computers as you like. The serial number is only required to do the initial installation.   To use the product you have to sign in, and you can have…

See here, What features from previous versions are not available in Adobe Photoshop Elements 12?, they were dropped in v12.   Cheers, -- Neale Insanity is hereditary, you get it from your…

No need to uninstall PSE12, just install from the new disc. You should end up with both PSE12 and PSE13 (they can coexist) installed. This is the preferred method because if there are any problems…

Very pleased to hear that that worked for you. Enjoy PSE13 - there's some great stuff in it.   Cheers, -- Neale Insanity is hereditary, you get it from your children   If this post or another…

Was PRE installed AFTER installing W7, or did you do an upgrade to W7? If an upgrade to W7 I suggest you uninstall and reinstall PRE8.   If you no longer have your disks you can download the PRE8…