I know that this is predominantly a place for gaming, but I've run into some trouble and know I can trust the people here. If my query belongs elsewhere, please let me know.
I'm using Windows 7. When I bought/built my new gaming PC, I partitioned my 500GB harddrive, keeping Windows etc on the C: and planning to use the D: for everything else. After a while I realised that, as I'm new to this whole scene and a bit of an idiot, I had been forgetting to install things on the D: drive, so the smaller partition, meant only for Windows and things, was basically full.
I had no trouble moving most of My Documents and all that over to the D: drive once I'd realised, but now I've hit some trouble. The tutorial I found tried to talk me through moving the "AppData" folder, which I have since heard isn't always a good idea, and almost definitely not a good idea for someone with my level of ability. Okay, fine, that can stay where it is.
However, I must have failed to undo some of my attempts to move it, because now my PC takes much longer to boot up. Before, it was booting up as new: once I could see my desktop, I could open Steam and Firefox and whatever else all at once, and it wouldn't mind. Now, when I do eventually see the desktop, I still have to wait before I can touch anything.
I don't know if this is something linked to the AppData folder or not, really, but it started happening the first time I booted up after (foolishly) messing about, so I can't see that it's anything else. I was going to System Restore it, but the oldest restore point is too new.
Is there any way of restoring AppData to how it's supposed to be? If not, is there any way of identifying exactly what is causing the slow boot, and fixing it that way?
Thanks in advance,