I forgot to mention that there also is an instance where sometimes when I start up my computer I will get a message from Windows mentioning that my disk is corrupted and that a disk checkup is strongly recommended and to press any key to cancel. I'm not sure exactly what this means but it never seems to make much of a difference.
So I've been having this horrendous virus with my computer that I can't seem to get rid of, and it's completely debilitating to my work and everything.. If any of you have any ideas about what could be causing it or possible solutions or any input at all, it would be greatly appreciated.
First off, my specs:
Computer Name: MININT-U0EQMHS
Operating system: Windows 7 Home Premium 64-bit (6.1, Build 7600)
System Manufacturer: Dell, Inc.
System Model: XPS L501X
BIOS: Ver 1.00 BIOS A04 PARTTBLb
Processor: Intel (R) Core (TM) i5 CPU M 560 @ 2.67 GHz (4 CPUs) ~ 2.7GHz
Memory: 8192 RAM
DirectX Version: DirectX 11
Okay, so first off, my computer will randomly shut off sometimes and crash to a blue screen of death, dump some files and memory, and restart itself. Windows then asks me if I want to do a startup repair (recommended) - I do so, and it can find nothing and asks if I wish to system restore. I've tried to system restore countless times and everytime I do it says "System Restore was Unsuccessful" - and no rollback.
When I start my computer again, occasionally, my internet bar in the lower right corner will have a red X through it and when I hover my mouse over it, it says that "No Internet Connections are Available" even though for the last several years I connect to the router wifi in my house. When I restart my computer, 4/5 times it will then be completely fine and connect as normal and show all the other connections around my house. Sometimes the red X will remain there despite the fact my internet is working fine.
Additionally, sometimes when I restart it will revert back to an older version of Windows... in other words, icons and buttons seem older and less modern, oddly enough and where the newer, circular button for "Start" with the Windows logo on it is now will be replaced by an older, gray rectangle with the "Start" button on it as seen in older models of Windows.
Smaller things also occur, as if just to frustrate me. My Word Documents after saving a few times will randomly become "Read Only" and therefore I can't edit them, so I have to copy and paste the whole document, paste it in a new document, save it, and delete the old one.
When playing video games in a graphically intense state or a crowded place on an MMO, the game will flicker, the sound will cut, and it will crash to desktop with a message that says that my graphics card "Has stopped working but has now recovered" which is extremely frustrating.
Sometimes the virus will uninstall random programs and I'll get a message stating that for instance, "You are now running an older version of Steam" and another message asking "Would you like to allow this program to make changes to your computer?" with the verified publisher as "Valve".
I've installed countless virus protection and scanning programs but none pick up on anything... and I can't system restore. I've installed drivers to update software but none of it seems to make a difference. My computer also stopped checking for updates automatically, and when I click on the bubble and try to update it manually, I get a message saying that it can't establish a connection, and as such I've been unable to perform maintenance on my computer for months now.
All these occurrences are extremely frustrating, so if anyone has any tips on how to correct any of these or even diagnose this virus, that would be great and it would be much appreciated. Big thanks in advance.