Reduce the number of backups kept and free up disk space

Well it probably will not  that way.  Like I said with single instance storage or data dedupe, ten pc’s take the same space as one.  It only needs one copy of windows to restore any of the ten plus the small amount of differences.  User names whatever.

That said, Windows only takes up what 30gb?  Has someone synced their music collection?  Videos and ISO’s take the most room.

I know one fellow who is backing up 25 pc’s and using only 500gb

this is pretty helpful for me

http://windirstat.info/