For a while now, I have been getting error messages when I try to start up windows firewall. I honestly have no idea why I need to start it up in the first place because I NEVER DISABLED IT. When I click to turn it on, error 0x80070424 pops up and the firewall will not start at all.
This isn't the end of it either, my screen will constantly flash when switching between users until I turn the monitor off and then back on.
Also, my computer was one a relatively jolly lad who did exactly what I needed it to at the blink of an eye, but lately, noticeable slowdowns have occurred without the addition of any new software.
A few days ago, it really started to show symptoms of virus infection when it had trouble starting up. It went through a "recovery" process and said that the problems could not be repaired. I attempted to boot it again and it came on relatively nicely but with even more noticeable slowness.
Microsoft security essentials has also been going mad with pop ups of a threat named "VirTool:Win32/Obfuscator.XZ". I'm just going to name this the culprit. The only problem is, MSE will not remove it, or maybe the correct way to phrase that is cannot remove it.
I have no knowledge in removing viruses, and I do not have the money to take it for repair by a professional.
I heard doing a clean boot of windows may help, alas my CD's were lost yard sales ago.
In addition to MSE, I have also attempted the use of Microsoft Security Scanner to no avail. It showed up with one threat found, the Virtool thing, but also stated that it couldn't remove it.
Malwarebytes came up with nada, and as did Mcafee's rootkitremover.
I am seriously at a loss and am craving help. I am currently running the PC in safemode with networking enabled. It would be great if you lovely people here on the forum could help me get it clean. Money is tight and is the only computer in the house among four people who use it daily. I definitely couldn't afford to buy a new one.
Things I probably should have mentioned:
OS: Windows 7 Home Premium
PC Model: Lenovo H420