I am currently performing a scan on my main storage disk data using Disk Drill and since it covers only around 200Mb per day I can see that this is going to take many months. To avoid the problems in future, I plan to back up my dozen or so main folders each on their own partition on my HDD, and keep folders that have been corrupted / might be prone to corruption in various separate partitions. Can anyone advise me as to any drawbacks with this? I have one in mind, but perhaps it's rather minor: what happens when Windows runs out of letters of the alphabet for drive letters?