[Adding Second drive (Error for Safety Reasons)]

it may be because that drive/partition is still marked as Active or Boot.

but overriding that, you can't just select a drive letter, without specifying a folder.

So in other words I'd have to put everything (900GB) into a single folder? I mean, if it's my only option I'll do it but it seems a bit much just to be able to keep track of data

[Adding Second drive (Error for Safety Reasons)]

 

So, I have an old 1TB harddrive that I was using for my OS. I was given a small 300GB HDD so i ended up installing windows there, and deleting the OS partition on the 1TB harddrive. Now however, even though I have full access to the files, CCleaner refuses to add it as a default scanning area.

 

Any suggestions BESIDES a wipe? Because that is absolutely OUT of the question.