Hey.
Just over a week ago, I got a new computer from PC specialists. It came, and was working fine for 2-3 days. The only problem it had was a Sysprep failed error or something when it first started each day.
It seemed pretty minor, and in my hurry to get playing again, i simply ignored.
After 2-3 days, I started it up, and it got to the Setup is starting services screen. I waited about 2 hours, then decided to restart computer. I then got the exact same problem as Shizalpop, and endless restarting cycle.
I went on the laptop, browsed the internet,Found this forum and another forum with the advice gregrocker gave, The cmd line etc.
I tried the repair tools, no problems were found. So i then tried the command line.
Now, I admit, What happened next was caused by my lack of, I don't know, patience mixed with lack of knowledge i suppose.
DETAIL (make sure Windows 7 partition is marked Active, if not continue

ACTIVE
I cant remember exactly, but i got to one of these stages, everything else was going fine, and then it gave me some sort of error message. I cant remember what it was im afraid.
I think it gave me the error on the detail stage, and i pressed Active anyway.
This turned out to be a bad move. I exited command window, Restarted computer, And it gave me a black screen with error message saying something along the lines of "Missing operating system"
I didnt really know what i was doing, so i popped in the Windows 7 cd, and installed Windows 7 again from boot to cd option.
This worked fine.I installed drivers etc, Installed Crysis and played it max graphics absolutely no problems. I think i had one graphical error,some stuff went odd colours etc.
Im on the computer typing this message at the moment,listening to music etc, everything fine. Been about 5 or 6 days since the reinstall.
My problem is, The computer just doesn't seem right.
Most of my downloads tell me they are corrupted after ive downloaded them.This varies from windows messenger download, Game patch download etc, and i tried the messenger one several times
I have searched google, and it seems quite a few people have this, related with Network cards it seems. Ive been unable to fix.
My avg wont update, Invalid binary update file is the error. I have googled this, Seems quite a few people get this, But ive tried everything they say fixes it, and still no luck.
My Wow game updater sometimes wont work, "Failed to update" error just pops over and over. Other times it works, but then after 10-50 mb dl/ed it says its blocked by a firewall. Tried disabling firewalls etc, no fix. I had this on my old computer also though.
Another game crashes when playing often. Could just be the game to be honest.
Another ingame account registration just refuses to work.Refuses to accept my email address to make account. Could just be game as well.
My graphics card was working fine,still is, but after 4 days i get a message saying the drivers are missing, yet i try to update and it says they are already installed.
The card is and was still working, and the message is now gone, Random error maybe.
I have MS paint in my windows start task bar. If i right click it, pc stops responding for about a minute, then continues working fine. Not a major problem, just odd on brand new computer.
Youtube will not stream videos properly. It works, just they seem sorta stuttery. Not tryed another other stream sites.
Now, What i want to know is, Am i just really unlucky, and can most of these just be put down as a coincidence that they wont work? Or, did i cause all of this by whatever i done in the command window with the error?
I did consider sending the computer back to Pc specialists for them to look at, But i was thinking that as there doesnt seem to be an exact hardware problem really, They wouldnt see anything wrong, and just send it back anyway.
I know its probably hard to say without know what the error i got was but Im just wondering whether it is worth me risking trying to do a total wipe of computer and OS, and reinstall it all again to see if it fixes everything?
And on a scale of 1-10, 10 being hardest, How hard would that be?
Hope someone can help
Edit- Hmm, i should probably of made a new thread for this i think, Just posted in here as it was same problem as Shizalpop. Sorry