my computer was recently infected by a number of trojan viruses. at first (yesterday), i was able to use my mouse and internet perfectly fine. i ran multiple Malwarebytes scans, and found an average of 19 infected files per scan. i deleted them and restarted my computer after each scan, and finally after a few more times, i ran a scan and came up with 0 infected files. i thought the virus(es) had been removed completely from my computer, but apparently not.
today morning, when i turned on my computer, the first thing i noticed was that my mouse was not functioning. i tried restarting my computer a few times, but got the same result each time. eventually, in order to login to my account (at the windows log in screen), i had to navigate using my keyboard, and managed to access my user account (which is the admin account for my computer). a lot of things were wrong with my computer, though.
for one, my desktop wallpaper had been changed into a blue screen with red words running across that read something along the lines of "WARNING! YOUR COMPUTER HAS BEEN INFECTED BY SPYWARE. PLEASE DOWNLOAD THE LATEST ANTISPYWARE SOFTWARE" in a very cheap, generic looking font. also, my internet was not working at all, despite the fact that all the other computers of family members in the house were experiencing no connection problems at all. in addition, i kept getting a little yellow box popping up from the little tray on the bottom right of my screen, saying that I needed to download anti spyware software. the little yellow bubble was evidently part of the virus, because there were quite a few typos i noticed in the message, plus when i tried to click the little x button to close it, it just opened some generic looking anti spyware software that started to "scan" my computer supposedly, and starting coming up with all these random viruses. i couldn't close that program with alt-f4, and when i tried to open up task manager, i kept getting a message that said that the process had been disabled, or something.
i ran multiple runs of malwarebytes, ccleaner, and a few of avast (they take very long), but for some reason they come up with very few results and even when i tell the programs to delete the infected files and restart, i still end up with the same virus-ey symptoms on my laptop. i tried restarting and running in safe mode (both normally and with command prompt), but i get this annoying blue screen that says there is an error or something (i cannot fully read what it says because it only flashes on my screen for a split second or so before re-restarting, i guess you could say).
my sister tried giving me a few more antivirus softwares on a flash drive, but my computer doesnt seem to acknowledge that i even stuck anything into its usb port.. ie. when i go to My Computer, the "F" drive or whatever does not show up at all.
sorry for this long, rambling post, but i am a little frustrated with this thing and am at a loss as to what i should do now, as i would really like to avoid reformatting. if anybody has any ideas, i would appreciate it incredibly! thank you
edit: i've navigated to the "hardware" tab of "Mouse" in the control panel, and the status reads:
Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)"
i'm not exactly sure what that means, but i'm guessing i will have to reinstall the driver or something? will that require an internet connection? thank you, again.