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Windows 7: Computer restarts while trying to install Avast

19 Apr 2014   #1
bildrk

Windows 7 Professional 64 bit
 
 
Computer restarts while trying to install Avast

Hi, I recently purchased a Dell Optiplex 755. I performed a clean install of Windows 7 professional, 64-bit, for my parents to use. I tried to install Avast, and at a point in the installation, the computer restarted. The computer turned back on, and running the setup again, it installed correctly, without rebooting. BUT, when I put it to sleep, and tried to wake it up, and it just restarted.

I was having the restart from sleep problem before, but after making a few tweeks to the power options, I fixed that problem. I am at wits end on this; I've never had a computer fight me this hard! Thanks for any help.


My System SpecsSystem Spec
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20 Apr 2014   #2
andrew129260

Windows 7 Professional x64 Sp1
 
 

Are you having any problems installing other software? Like malwarebytes or any other software? What happens when you try to install another AV like antivir or panda?
My System SpecsSystem Spec
20 Apr 2014   #3
bildrk

Windows 7 Professional 64 bit
 
 

Hi andrew129260, I did try and install AVG. Everything worked like it should; it installed correctly, and did not cause a restart. I believe it is a problem with Avast, and not my PC, but now I'm having another problem.

While I was surfing the net on it, it just randomly restarted. No warning whatsoever, no loud beep; NOTHING! Just restarted. What could have caused this? Is this STILL software related, or is it hardware? Thanks for any help.
My System SpecsSystem Spec
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20 Apr 2014   #4
andrew129260

Windows 7 Professional x64 Sp1
 
 

Most likely hardware. And more likely a failing power supply, or loose connection.

Do you have a power supply tester by chance? Are you comfortable working inside a pc?
My System SpecsSystem Spec
20 Apr 2014   #5
bildrk

Windows 7 Professional 64 bit
 
 

Hi andrew129260, thanks for your reply. I mostly suspected hardware, but was hoping it wasn't. I am very comfortable working inside a pc; not a big deal. I don't by chance have a psu tester; I will double check the connections to the board and rest of the hardware components.

I also tested the memory using memtest86; i did 3 complete passes, and it was OK. I was originally suspecting mobo, but psu makes sense as well. I hate even suggesting this, but if i took it to a local computer shop, could they test the psu for me? Thanks for helping.
My System SpecsSystem Spec
21 Apr 2014   #6
andrew129260

Windows 7 Professional x64 Sp1
 
 

They should be able to yes, But I suggest buying a temporary power supply and see if that solves the issue, if not, let me know.

Here is a post with information on power supplies so that you can learn which one to buy that will power the pc in question correctly:

Problems installing a AMD low profile card
My System SpecsSystem Spec
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 Computer restarts while trying to install Avast




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