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Windows 7 64bit and Toshiba A300D - Freezes with C000021A


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#1 Keddy1

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Posted 13 May 2010 - 10:38 AM

Hi

Ive just sat and ripped my hair out over this laptop, its a Toshiba Satellite, A300D. It installed Windows 7 Home Premium 64bit no probs, all good and i completed the installation. installed all my apps etc... and then it crashed with the C000021A error. Start up repair fixed the issue and said it was a currupted file. So i continued, and it crashed again, but this time startup repair didnt fix it. so i got the DVD out again and tryed to boot to that and then recieved the error C000021A, i then changed the ram slots, and changed the actual ram, and this did not fix the issue, so i took the hdd out and tried to boot to the cd without an Hdd, and the same result C000021A happened.

Anyway......

I found the Bios was version 1.80 and a update to 2.10 was released and that fixed the issue. Hope this saves someone else the trouble.

UPDATE YOUR BIOS!!!!

I did thru bartPE booting to xp. otherwise i would have had to reinstall vista (wich quite happily booted with no problems at all being a 32bit version) and then update the bios.

In the end the 1.80 Bios is not compatible with windows 7 64 bit and needs to be upgraded.

Hope this helps someone.

Kyle.

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#2 computerxpds

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Posted 13 May 2010 - 02:26 PM

Hi keddy1 :huh: to BC. :huh:

Thank you for posting how you fixed that problem and I am sure it will help a lot of other people. :thumbup2:
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#3 keyboardNinja

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Posted 13 May 2010 - 04:25 PM

:huh:, as well.

Yes, sometimes with old hardware, a BIOS update is in order. However, don't do a BIOS upgrade just because one is available. You should only do it in cases like this where you have to have one. :huh:
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