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Please help, computer freezing after logging into Windows. Works fine after restarting

Hey guys i've been having this annoying problem for almost a month now and have tried everything. Here it goes:

Whenever i start up my computer it boots normally. Everything is fine and i get to the windows 7 login screen. Now i type in my password and login. Im on my desktop and everything is fine, then a few seconds of being on the desktop this happens my screen goes purple and freezes. I immediately restart my computer and go through the start up process. I login and, hey, everything is fine. My computer runs perfect for the rest of the day. So i just thought it was a once time thing. Long story short its not. Everytime i start up my computer and login seconds later it freezes and gives me that purple screen, after restarting my computer itbehaves normally for the remainder of the period its on. Occasionally after logging it i can make it long enough to launch a game, but minutes after playing it will freeze. and of course, after restarting it works fine.

i took everything out of my system and cleaned it, video card, RAM, etc. When i put my old RAM back in the computer it didnt boot. "ah there's the problem" i said to myself. I figured the RAM was going bad, so i bought some new RAM that was compatible with my mobo. i got this http://www.newegg.com/Product/Product.aspx?Item=N82E16820231311. 2x4gb RAM. surprisingly it worked for a couple days! no crashing, no purple screen. UNtil on the 4th day the computer didnt boot and gave me long beeps. After intensive research the beep on my mobo meant bad RAM. I did the whole take out one ram, test it, etc. It would only boot with one of the ram sticks in, I ran a memtest on it for 6 hours and it came out okay, i couldnt test the other stick because it would not boot with it in, Im currently in the process of RMA.

so now, i pop back in my old RAM out of desperation, it boots like normally, freezes, restart, then works okay. I ran a memtest on my old ram for 22 hours, 22 passes. No errors.

i swapped out my video card and put in an older card that i knew for a fact worked. Didnt change anything. reinstalled drivers. nothing

The only two things left that i think are causing the problem are 1.) bad mobo. Idk how. or 2.) virus/someething happened with windows.

one note, my malwarebytes would not work the past couple of days and i have noticed my logitech g15 keyboard drivers crashing. All this seems like the sign of bad RAM to me.

But anyways, i have ran multiple scans with adwcleaner, JRT, hitmanpro. NOTHING.

please guys i have no idea what to do. My last resort would be to wipe my hard drive and reinstall windows. I dont want to do this only to have my computer freeze and change nothing.

specs:
http://www.nvidia.com/object/product_nforce_790i_ultra_sli_us.html (NVIDIA nForce 790i Ultra SLI MCP)

GeForce GTX 280

Intel core 2 duo E8500 3.16ghz

4gb RAM
4 answers Last reply Best Answer
More about computer freezing logging windows works fine restarting
  1. Oh one more note, its not temperature problem because this happens seconds after i log in. I ran FURMARK on my video card and it did not crash. My cpu is also cool.
  2. monkeylord said:
    Oh one more note, its not temperature problem because this happens seconds after i log in. I ran FURMARK on my video card and it did not crash. My cpu is also cool.


    I'd reformat see if it runs better. If not, likely bad mobo or driver conflict. Also, could be a power supply shorting out.

    If its any solace, you could get a lot better performance out of a new computer. $500 buys a lot of computer these days. FX-6300, AM3+ mobo and r9 270x for ~$450.
  3. huskersforever said:
    monkeylord said:
    Oh one more note, its not temperature problem because this happens seconds after i log in. I ran FURMARK on my video card and it did not crash. My cpu is also cool.


    I'd reformat see if it runs better. If not, likely bad mobo or driver conflict. Also, could be a power supply shorting out.

    If its any solace, you could get a lot better performance out of a new computer. $500 buys a lot of computer these days. FX-6300, AM3+ mobo and r9 270x for ~$450.


    how does one go about reformatting? any good links or vids would be appreciated.
  4. Best answer
    monkeylord said:
    huskersforever said:
    monkeylord said:
    Oh one more note, its not temperature problem because this happens seconds after i log in. I ran FURMARK on my video card and it did not crash. My cpu is also cool.


    I'd reformat see if it runs better. If not, likely bad mobo or driver conflict. Also, could be a power supply shorting out.

    If its any solace, you could get a lot better performance out of a new computer. $500 buys a lot of computer these days. FX-6300, AM3+ mobo and r9 270x for ~$450.


    how does one go about reformatting? any good links or vids would be appreciated.


    Need a windows dvd or usb device, http://www.youtube.com/watch?v=hZivYMA2qRA
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