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A problem is preventing Windows from accurately checking the license for this computer: Error Code 0x8007007f

Posted on 2006-07-19
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Last Modified: 2008-03-03
have just reinstalled Windows XP Pro and SP2, everything seemed to be going
fine until it had finished and I tried to log in, as soon as I click on my
user name I get an error report "A problem is preventing Windows from
accurately checking the license for this computer: Error Code 0x8007007f.

As you can expect, this prevents me from getting into the PC (other than in
safe mode as administrator without network) and correcting the problem.

How can I resolve this issue without reinstalling the OS again?
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Question by:mantic1
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glennbrown2 earned 500 total points
ID: 17140880
are you using a Dell or HP computer?
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by:glennbrown2
ID: 17140990
A repair of Windows is in order.  

Go through the windows setup as though doing a new install (do not choose Recovery console).  When you choose the C: drive it will let you know you alreay have an installation there.  It will then ask if you want to delete it or repair it.  Try to repair.  
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Author Comment

by:mantic1
ID: 17141318
Actually, I resolved it off of a google search below...

0x8007 com errors are windows errors. So com error 0x8007007f means windows error 7f (or 127 in decimal). Most Com errors are component specific. Type in a command prompt (must be in decimal - use calc in scientific mode to convert)

net helpmsg 127

which says

The specified procedure could not be found

This message is usually caused by mismatched versions of files. It loads a dll but the function is not in it. See if the userenv log sheds any light on it.
C:\WINDOWS\Debug\UserMode\userenv.log

Note that many errors in this file are not errors but windows checking stuff (if it fails it knows x and if it suceeds it knows y). You are looking for a 127, 0x7f, or 0x8007007f errors and trying to identify the filename of the file without the expected function in it (which is a real error).

You could try running in Start Run

sfc /purgecache

if you have your install media ready. This will clear your cache of system files then verify your files.
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