The Faithful and Discreet Slave have given us a great tool with JW Library but if we need to install it on another machine for whatever reason it largely requires a re-download of all the books and media which can be tedious.
This guide will describe the process of backing up and restoring the information using Windows 10.
Step 1: JW Library Now Crashes
It's possible that you've copied over the WatchtowerBibleandTractSo.45909CDBADF3C_5rz59y55nfz3e folder to the location on the new machine. This will cause issues because Windows has special permissions on this folder and some of the other folders.
The fix is simple but time consuming so first you need to uninstall JW Library. You can do it without doing so but this will ensure that the files are completely gone.
Reboot Windows now. You'll need to do this step because even though the app is gone there are files that still seem to be open in memory even though the app hasn't loaded correctly. Rebooting Windows will clear these from memory.
Reinstall JW Library through the Windows Store and when installed run it. It might restart a couple of times but it should come to a state where it is useable. When it is at this point close JW Library yourself.
Step 2: Contact Me
If for whatever reason you're having issues please leave a comment below and I will endeavour to help you.