If you are using the custom 448-bit data key to encrypt your archive, testing your data encryption key prior to adopting your backup archive is a best practice. After adopting, you are prompted to enter your custom encryption key. If you enter an incorrect data key, your archives will be deleted!
This tutorial explains how to verify that your encryption key is correct before attempting to adopt your backups. This reduces the risk of needing to restart your backup.
You can test your custom encryption key from either the CrashPlan web app or the CrashPlan app by restoring a small number of files.
Alternatively, if you don't want to send your custom key to Code42, proceed to Option B: Verify The Custom Key In The CrashPlan App.
After restore completes, proceed to Step 2: Adopt And Resume Backup
Once you have verified your custom encryption key, you can proceed with adopting your archive and resuming backup.
CrashPlan will synchronize your file selection with your backup archive. Backup resumes once synchronization is complete.