Is there a way to check what got deleted on a computer?

I just was cleaning out my computer and an uninstaller for Wakfu (an MMORPG) screwed up and tried to uninstall my entire harddrive.

It didn't get anywhere close to my Windows or Program Files folders (I think) but I'm not 100% sure what was and wasn't affected. I know it tried to delete some stuff from the Aerosoft launcher and some stuff from C:\AMD but I don't know what else was affected.

Really need some help here. :/

this, for example. I've not tried it myself, but there's loads of similar software. Basically, when you delete something from your harddrive, it doesn't actually get deleted, none of it - sectors on which it was written just get marked as 'free', and computer can overwrite them with new data. So don't install/download anything new you don't necessarily need and try software that allows data recovery.

Is that software safe?

I'd hate to restore it only to get a virus.

EDIT: Ah, it's payware. Is it even going to work reliably without paying for it?

I have no idea, really, I've never tried it. I just want to give a rough idea of what to google for and tell you that it's far from impossible to recover it. I'm sure someone will turn up with something they have tried, just... Please don't download / install anything in the meantime. You could even turn off automatic updates, just to be on the safe side.

Well, I downloaded one recovery thing that was tiny (like 406 KB) that I found through LifeHacker. It looks like nothing too important was hit. Some games are going to have to be reinstalled and such. But I don't know what all of this is important. I'm going to take some screenshots and see if any of this is important.

EDIT: Alright, new question. I actually went through it. A lot of the stuff I was unsure about I uninstalled purposefully. It was just system files used for TERA.

So here's what I'm not sure about:

Is ANYTHING in a temp folder important?

Is ANYTHING in a folder labeled <unknown> in the undeleter important or is that a folder that's since been completely removed or something?

EDIT2:

Are snapshot-2 and/or metadata-2 in C:\System Volume Information\SPP important?

Looks like lots of Chrome user data has been deleted, but that's a normal thing right? That didn't happen because of the rogue uninstaller?

EDIT3: Is C:\Config.msi important? 3 things got deleted out of that.

All in all, it looks pretty fine though. I seem to have caught the uninstaller in time. Shame that some of my games got hit though. :/

EDIT4: Googled and none of that stuff seems important. In fact, it looks like most of it was deleted routinely and not by the rogue uninstaller.

So pretty much just a few of my games and the AMD temp folder got hit.

Good, now I can reinstall those games and know that none of the system files or anything were affected.

Well temp folders should be safe to delete, that's for sure. And deleting user data usually - and I do repeat this, USUALLY - don't cause any damage, just delete any... Well... User data. As for your other questions, I'm not sure, but at the very least I can bump the topic.