Hi,
Having used Avast to scan my archived files, it states in the results that it was unable to scan due to ‘password protection’ or corrupt files, etc.
There is an option under the action button to delete these files;
Question - is it safe to do so and are the said files ever going to be needed or can they ever be accessed anyway?
Spybot (as well as many other applictions like that) is encrypting some of the files. Nothing special or harmfull that Avast can’t scan them. Just leave the files where they are. Unless you have removed Spybot ofcourse. In that case you can simply remove the entire folder Spybot was in.