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Windows 7 won't reboot after windows update

February 13, 2011 at 15:27:37
Specs: Windows 7, Athlon 64FX sempron
I built a computer a year ago. Installed Windows XP Pro, then installed Windows 7 Pro as a dual-boot. After installing some new peripherals, the Windows XP quit working. An IT guy told me that was because of W 7 drivers, so I don't bother using it anymore.
The other day, I started my computer, everything worked. Then I noticed a Windows update box saying it had installed an update, and was going to restart. I hit the restart button, and when it booted up, it went to the dual-boot screen. I clicked on W7,then it went to a blue screen, with only the words "Build 7600, this copy of Windoes is not valid".
I tried to boot into safe mode, and it locks up with what I've learned is called the black screen of death. When I change BIOS to boot from CD, and with the original W7 DVD in, I try to repair, it does nothing, I try to do a system restore, it says there is no restore point. I thought I had one...
Read some posts, used the install disk to boot to command prompt and tried C: "SFC /scannow", but it only says may take some, after about 10 seconds says there is a repair already underway and to reboot and run SFC again. I did that 6 times in a row, no change.
I then tried to reinstall W7 and I get the message to remove the DVD, reboot and start over, but I always end up in the same place!
What next?

See More: Windows 7 wont reboot after windows update

February 13, 2011 at 21:56:58
When you say you put in the original Windows 7 install Disk, I assume you have a legit copy and key and will proceed on that assumption (If not then your problem is different).

I think you may have a hardware problem very possibly a bad memory stick. Run Memtest86 to be sure. If you get errors, retest with one sick of RAM at a time to identify the bad one.

When you reinstall Windows 7 you will need to make sure that all external devices are unplugged except for keyboard and mouse and remove all non-essential internal components including extra hard drives and most expansion cards.

You have to be a little bit crazy to keep you from going insane.

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February 13, 2011 at 23:41:22
Before you begin the instillation process, you must make sure that you have backed up all of your important data. If you want to install Windows XP/ Vista in a system which has Windows 7, you must create another primary partition on your hard drive. You can use a separate partition program for this because if you are using a setup disc to create a new partition, it will delete all the data on the disk. It is recommended to use at least 20 GB of space or more depending on the number of programs you wish to install in your new partition. Once the new partition is created, the system will reboot. If it is successful, it will boot updating again and you will see the newly partitioned drive.

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