I need to set my Windows 7PC back to delivery status, and then install all required application, including ADE. I have backed up all data including the ADE documents (including some with DRM protection), and will restore them after Windows renewal.
Will the DRM protecet documents be available in the refreshed system (same PC, but new Windwos installation)?
As long as you are authorized to an AdobeID (Library->Authorize), then you will be okay, as long as you authorize to the same ID when you reinstall.
Make sure you back up the entire Digitial Editions directory so that you don't lose any annotations.