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Microsoft Windows XP Professional for PC
Problem for Microsoft Windows XP Professional for PC

Hard error : STOP C000021




By muhd eilyas on Feb 19, 2009

" "
STOP C000021 unknown hard error\system root \sytem32\ntdll.dll
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Solution #1

posted on Mar 29, 2009
Somewhat Helpful)

shreyasrames
shreyasrames

Rank: Apprentice 
Rating: 75%, 1 votes
This is a common error
just copy or download ntdll.dll file from the net and replace the file in ur disc
then just make a new bootable iso file and burn into a new cd
restart the comp,install and enjoy
Shreyas
Cheers

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Solution #2

posted on Feb 22, 2009
Not Rated)

tom19511
tom19511

Rank: Guru  Microsoft Expert
Rating: 85%, 2208 votes
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q314474
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