Satellite P20-761: Windows won't start - it loads agp.sys then freezes

When I switch my laptop on it begins with the Toshiba logo as if starting up but then the screen turns black with the following message:
We apologize for the inconvenience, but windows did not start successfully. A recent hardware of software change might have caused this...... etc. etc.
I then have a list of options to choose from:
Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt
Last Known Good Configuration
Start windows normally
If I choose any of the safe mode options the screen runs through a list of files ending with: multi(0)disk(0)partition(1)\WINDOWS\System32\DRIVE RS\agp.sys then freezes.
If I choose any of the last two options the screen simply goes black and nothing happens.
I am desperate not to loose any data that I have accumulated on the laptop. Silly me didn't bother with backups.
The only disks I can find that came with the laptop are "tools and utilites" and "product recovery dvd-rom". Seeing as I'm not technically minded I'm frightened to try any in case I loose any of my more important files.
PLEASE HELP!!! Replies need to be plain English as like I say I'm not really technical. Thanks. Fingers crossed.

Hi there, it appears Windows has corrupted itself and cannot boot I too have experienced this 2 times with my A60-181. Unfortunately the only solution is to re-install Windows using the Product Recovery DVD but be aware this will format your hard drive erase all your personal files.
Getting access you files from an unbootable OS isn't difficult a boot disk/CD would be needed the only question is which one do you use. I would personally recommend BartPE boot CD this will provide you with a basic environment to run Windows programs not only that but it has full NTFS read/write support, access to USB flash drives and LAN networking. To create a BartPE CD you need a copy of Windows XP with at least SP1 unfortunately not everyone can meet this requirement but you maybe able to obtain a image file from unofficial channels :) Alternatively you could use a Linux boot CD something like Knoppix to get access to you files and to save to a USB flash drive.
Richard S.

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THE SPECS OF MY POWERBOOK:
Model Family:
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Processor:
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Manufacturer:
Motorola
# of CPUs:
1
Codename:
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Backlight:
CCFL
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Dimensions:
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Hi,
was wondering if anyone could help?
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Found this Microsoft knowledge base article:
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Hello,
I'd ask in the
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When you see answers and helpful posts, please click Vote As Helpful, Propose As Answer, and/or Mark As Answer.
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Satellite P20-761: Windows won't start - it loads agp.sys then freezes

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