Man, I seem to be having the worst luck these few days, helped in no way by the fact that I'll be having a week of final exams staring tomorrow. First, my iPad acts up. But that's a problem for another time. Now, my PC is having these weird problems. It started when I booted my PC a couple of hours ago, after getting back from school. The first thing I noticed was that my mouse wasn't working. The lights on my Logitech G500 remained lit for a few minutes but it couldn't move the cursor nor could any of its buttons so anything in any USB port. I borrowed my sister's mouse but that couldn't work too. Both mice are confirmed to be functional on other PCs. The next thing I noticed was that I couldn't connect to the internet and my adapter couldn't find any networks. I looked through and located the Device Manager and found all 5 devices (2 seemingly identical "HID Keyboard Device", and another pair of "HID-compliant mouse" and my PC) having that yellow triangle with and exclamation mark beside its icon. The troubleshoot option did nothing for any of them. I looked at the hardware on the PC and found that a bunch of the devices, all the Universal Serial Bus controllers, all the sound, video and game controllers and all the network adapters had the exclamation mark.
It is worth mentioning that yesterday, while trying to fix my iPad, I downloaded a bunch of stuff, including an Apple Recovery Device (or something like that, which I've since deleted.) and LIBUSB, which I have also deleted, though I may not have completely removed it from the system. I also accidentally installed snap.do, which I promptly uninstalled.
Please help me fix my PC. I typed this whole thing on my sister's iPhone and I realized that you have to admire those people who can type with these minuscule keys.
Thanks in advance!
PS: This is Windows 7.
Edited by ThatRandomGuy, 10 October 2013 - 06:16 AM.