I got this prompt today when I got home, not entirely sure why it would need me to do this. I've never seen this prompt before, and have been using windows 7 (on different hard drives) since its release. Should I just let it do the thing?
"Back up your file encryption certificate and key"
Creating this backup file helps you avoid permanently losing access to your encrypted files if the original certificate and key are lost or corrupted.
Then 3 buttons:
Back up now (recommended)
You should back up the certificate and key to removable media
Back up later
Windows will remind you the next time you log on
Never back up
you could lose access to your encrypted files