I fixed My "adobe digital editions will not authorize to open this book"

I have a Kobo Glo & a Dell PC the runs on Windows 10

I fixed this infuriating by problem following those steps:

PC:

1. Uninstall Adobe Digital Editions (ADE)
2. Reinstall ADE (make sure it's the 3.0 version)
3. Erase PC authorization while in ADE: Press Ctrl + Shift + D
4. Reauhtorize it.
5. Re-download the borrowed ebooks

Kobo:

1. Deautorize it in its "Settings" menu
2. Connect to the PC
3. Open ADE 3.0 on PC
4. Open the re-dowloaded books in ADE
5. Authorize the Kobo
6. Copy the eBooks to the Kobo using ADE software
7. Close the ADE program
8. DO NOT eject the Kobo from PC, simply unplug it

This worked for me