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Windows 7 will not boot after upgrade

Last response: in Windows 7
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June 28, 2010 8:36:09 PM

Today I upgraded my CPU, MOBO, and RAM.

Old Comp
ECS Motherboard
Intel Pentium Dual Core e2200
2 GB 667 MHZ RAM
Radeon 4850 1GB

New Comp
MSI 790x
AMD Phenom ii x4 925
OCZ Obsidian 4 GB 1600 MHZ RAM
Radeon 4850 1GB



So my computer was running Windows 7 32 Bit, but after I upgraded whenever I turn my computer on it says "Windows could not boot because of a hardware change". I do not know what to do next. Please help.

More about : windows boot upgrade

June 28, 2010 9:00:05 PM

Are you using the same Windows install on the same hard drive? If you are then Windows won't boot most likely because you changed from Intel to AMD hardware and it doesn't have the correct drivers installed to recognize your hardware. Re-install Windows and you should be good to go.
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June 28, 2010 9:05:08 PM

I tried to reinstall windows, but when I try to load from the disk it fails.
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a b $ Windows 7
June 28, 2010 9:06:47 PM

Isnt it likely that the authentication software is preventing boot up as activation of Win 7 is married into the Hardware Configuration?
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June 28, 2010 9:13:48 PM

sebluy said:
Today I upgraded my CPU, MOBO, and RAM.

Old Comp
ECS Motherboard
Intel Pentium Dual Core e2200
2 GB 667 MHZ RAM
Radeon 4850 1GB

New Comp
MSI 790x
AMD Phenom ii x4 925
OCZ Obsidian 4 GB 1600 MHZ RAM
Radeon 4850 1GB



So my computer was running Windows 7 32 Bit, but after I upgraded whenever I turn my computer on it says "Windows could not boot because of a hardware change". I do not know what to do next. Please help.


When you perform a complete platform change, you also need to do a clean install of the OS.
When you try loading from the disc, what error message does it display?
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June 28, 2010 9:14:08 PM

No, the activation doesn't check on boot up, only once you are actually logged into Windows. Even then it will let you boot and use Windows, but you won't be able to use Windows Update and other features that rely on Windows Genuine Advantage somethingorother.

When you say the disc fails, what message do you see on the screen?
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June 28, 2010 9:23:49 PM

File: \windows\system32\DRIVERS\adpahc.sys

Status: 0xc0000221

Info: Windows failed to load because a critical system driver is missing, or corrupt.
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June 28, 2010 9:44:49 PM

Maybe try cleaning your Windows 7 install disc. I've had installs where I got that message when it couldn't read the disc.
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June 29, 2010 3:44:29 AM

Hmm, I tried installing Windows XP after deleting the partition. It worked at first, but then crashed and gave me a black screen after I loaded into Windows. Do you guys have any ideas?
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June 29, 2010 5:49:56 PM

Well I ran Memtest86 using a boot iso, and it failed so I believe my memory is bad. I am pretty sure the RAM is compatible with my motherboard, but could someone please check it?
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June 29, 2010 9:02:56 PM

Hello sebluy,

Sounds like hardware issues, you will need to physically take out the hardware(e.g. sound cards, tv tuner, etc.) just start system with only the bare motherboard, video, ram and hard drive.

Make sure you have the latest drivers, but not beta drivers.

Microsoft does have an official Windows 7 Support Forum located here http://tinyurl.com/9fhdl5 . It is supported by product specialists as well as engineers and support teams. You may want to check the threads available there for additional assitance and support.

John M
Microsoft Windows Client Team

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