Randomly, one day, I've began to have these series of errors. It began after I plugged in my new graphics card (gtx 760). I got a new gpu because my old one would crash and display red and grey lines everywhere. Since I've gotten my new one, I haven't had that issue (it was without a doubt a gpu problem and not a virus). But I've had a ton of other ones, that smell like Malware. Here's what happens when I startup my computer: 1) I get a message stating that dropbox is corrupted, and that I need to run "Chkdsk.exe." This is despite the fact I uninstalled and currently have no dropbox anything on my computer, even in the roaming files. 2) The pinned chrome logo flashes white, as though it was open/opening, then goes back to normal (like a closed pinned program). I don't know why it's trying to open on startup, but whenever I try to open it after that it refuses to open and will flash white, then disappear. I don't get any windows, nothing, and Task Manager claims that nothing is happening at all. When I try to uninstall chrome, I'm told that it's open and so I can't. So, what I did was 1) run "Chkdsk.exe." 2) install unlocker, so that on startup chrome will be deleted before it automatically opens. The result: 1)That did nothing. Still get the dropbox popup on startup. 2) I re-downloaded chrome and opened it. It opened, with all of my bookmarks, but I get two popups: One for a skype extention and one for a Ask Adds extention. My other extentions are gone. Upon closing chrome and trying to re-open it, I get the same problem where Chrome wont open. I checked through my computer everywhere, I can't find any suspicious program. I don't run any kind of virus detecting software, maybe I should, but most virus programs are really just viruses themselves like McCafee and Norton. What do I do from here?