Recover Old GUID?
Is there a way to retrieve the Package, Product and Upgrade Codes GUIDs from a setup.exe or log file that was generated when the original previously?
Hello, in this situation, I think the best way to get back your deleted files is to use a third-party tool, I think the Bitwar Data Recovery is good to use. More importantly, it's free, so I think you can have a try.
If there is a Setup.ini file in the same folder, open that file (by double-clicking on it).
If there is only a setup.exe file, run the setup.exe, when you see the first dialog box on the screen, open %temp% in File Explorer and look in the GUID-name folders. When you see a Setup.ini file, open it (by double-clicking on it). Check the [Startup] section, if the Product keyword matches the product you are looking for, you've got the right .ini file.
In either case, when you have the right .ini file, the 3 GUIDs you are looking for will also be in the [Startup] section of the file.