During apply patch with opatch command, on windows we will get the following error:

Prerequisite check “CheckActiveFilesAndExecutables” failed

On Windows System, When you try to apply the Patch after clean shutdown.

Sometime following error occured:

Following files are active :
d:\oracle\product\11.2.0\dbhome_1\bin\oracommon11.dll
d:\oracle\product\11.2.0\dbhome_1\bin\oraclient11.dll
d:\oracle\product\11.2.0\dbhome_1\bin\orageneric11.dll
d:\oracle\product\11.2.0\dbhome_1\bin\orapls11.dll
d:\oracle\product\11.2.0\dbhome_1\bin\oran11.dll
d:\oracle\product\11.2.0\dbhome_1\bin\oraxml11.dll
d:\oracle\product\11.2.0\dbhome_1\bin\oci.dll
d:\oracle\product\11.2.0\dbhome_1\bin\orannzsbb11.dll
d:\oracle\product\11.2.0\dbhome_1\bin\oraasmclnt11.dll

INFO:Prerequisite check “CheckActiveFilesAndExecutables” failed.

OPatch failed with error code = 74
This is the common error occurred during the patch applied on window system.

One command is available for check which process is holdling lock on these files

Tasklist /m ora*

Solution:

Go to services.msc and paused the following service “Microsoft monitoring Agent” then it will work