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Windows 7: Booting crash

08 May 2011   #1
Southampton1994

Windows 7 x64
 
 
Booting crash

I booted my PC last week no problems, wen't to open my browser and everything froze. I had to then force shut down with the power button. Ever since then, I've tried to boot the system and no matter what I do it freezes before I get to the log-on screen.

Previous problems:

Faulty hard drive (replaced)
Faulty motherboard (replaced)
Faulty RAM (DRAM LED on motherboard) no longer lit up in red

Freezes on:

Safe Mode(s) - CLASSPNP file
Startup Repair (Attempting Repairs - have left for over 5hrs before)
Starting Windows animation

Have tried:

All of the above
Booting from Win7 disk
Windows Diagnostics tool

Obviously I must have some sort of nasty bug because this has all of a sudden happened. Have searched Google and many forums for answers but no luck. I am rapidly running out of options!

Any help much appreciated.


My System SpecsSystem Spec
.

08 May 2011   #2
usasma
Microsoft MVP

 
 

I suggest starting all troubleshooting with the following diagnostic tests. They'll save you a lot of time and heartache if there is a hardware failure, and you'll have the disks on hand in case you need them in the future:
Quote:
H/W Diagnostics:
Please start by running these bootable hardware diagnostics:
Memory Diagnostics (read the details at the link)
HD Diagnostic (read the details at the link)

Also, please run one of these free, independent online malware scans (if you can get onto the Internet) to ensure that your current protection hasn't been compromised: Free Online AntiMalware Scanners (read the details at the link)
Once you've let us know the results of the HDD and memory test, we can move on from there.
My System SpecsSystem Spec
08 May 2011   #3
Southampton1994

Windows 7 x64
 
 

Hi,

Thanks for the fast response. I have run the diagnostics tool but again I got another freeze. I would run the online test but it won't let me anywhere near the log on screen so I am very limited as to what I can do with it (currently using a different PC)
My System SpecsSystem Spec
.


08 May 2011   #4
usasma
Microsoft MVP

 
 

Try opening the side of the case and point a house fan into it at top speed.
See if that lessens the freezing.
My System SpecsSystem Spec
08 May 2011   #5
Southampton1994

Windows 7 x64
 
 

Nope, my PC is dust free inside.
My System SpecsSystem Spec
08 May 2011   #6
usasma
Microsoft MVP

 
 

Still, point the fan at the video card to see if it helps to cool it down. For example, if the cooler isn't working properly, the house fan will cool the entire card - which should lessen the problems. On the reverse end - if the fan doesn't reduce the problems, then we can rule out overheating as a problem.
My System SpecsSystem Spec
08 May 2011   #7
Southampton1994

Windows 7 x64
 
 

Over heating is definitely not an issue. My PC case has many, some large, fans. Everything is kept very cool, clean and tidy.
My System SpecsSystem Spec
08 May 2011   #8
SIW2

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64
 
 

Do the Starting Windows dancing balls just stop dead?
My System SpecsSystem Spec
09 May 2011   #9
Southampton1994

Windows 7 x64
 
 

The Windows 'flags' continue to glow (on & off) but does not go any further.
My System SpecsSystem Spec
Reply

 Booting crash




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