Hi do this tio get rid of this error
Restart PC
Log in as Administrator to windows
Delete the SQLEXPRESS directory from this location
C:\Documents and Settings\username\Local Settings\Application Data\Microsoft\Microsoft SQL Server Data\SQLEXPRESS
Restart the PC
It will hopeully solve your problem
Don't say thanks rather
mark my reply as "Answer" if it helps you ,Doing so u'll get points too
amiT jaiN
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