Windows 7 doesn´t boot up

[Kerppo]

Windows 7 doesn´t boot up

After installing Windows 7 it worked perfectly for a couple of days. I installed all available upgrades and it still worked perfectly. Then, after a normal shut down, it just didn´t boot up. After the "Press del to enter setup etc" -screen there was a black screen with command prompt cursor blinking in top left corner of the screen. I tried all the repair options from the windows 7-disc, but it didn´t help. So I decided to reinstall Windows. After reinstalling it worked couple of days again. And this morning it didn´t boot up again. So I have no idea what to do. I'm not going to reinstall the windows again, only to face the same problem again.

So please help me!

 

[Sanvean]

Strange...
I never heard of that, but I found a possible answer over at Microsoft:

1. FIRST - While your stuck at the initialization screen, press the power button to make sure your PC is powered off.
2. Now unplug the PC. If you have a laptop, you must also remove the battery.
3. Then press the power button for 20 seconds to discharge the capacitors.
4. Plug the PC back in. If you have a laptop, put the battery back in.
5. Power on the PC

Make sure you have the latest BIOS for your motherboard!

Original thread:
Ignore the inital response and scroll down further.
Computer won't boot up after installing Windows 7

 

[Kerppo]

Tried that, but it didn´t help.
I'll try to find newer motherboard drivers, but means I have to install Windows again.

 

[Sanvean]

Hmmm what's your power supply by the way? Just curious

 

[Kerppo]

Can´t remember more details about my power supply, other than that its 850W

 

[Sanvean]

Ok thanks, can you try something for me?
Install Win7, but hold off on the Updates and see if it stabilizes.
Some updates have been known to cause problems.

 

[Kerppo]

I reinstalled the Windows again, and during the first start up of Windows, following text appeared.
BOOTMGR image is corrupt. The system cannot boot.