This is the error :

17052 : Device activation error. The physical file name 'D:\MSSQL\Data\store_Data.MDF' may be incorrect.

17204 : FCB:pen failed: Could not open device D:\MSSQL\Data\store_Data.MDF for virtual device number (VDN) 1.

17207 : udopen: Operating system error 32(The process cannot access the file because it is being used by another process.) during the creation/opening of physical device D:\MSSQL\Data\store_Data.MDF.

I ran sp_resetstatus 'dbname' but still the status is suspect.

--sntiwary