Exe file locked temporarly with unknown user id

Hi Guys,

Similar problem to others in forum. I'm creating an EXE with gcc and visual studio and sometimes the EXE gets locked for a short time (say 2 or 3 minutes). During this time, I can't delete the EXE and I can't use any of the suggested fixes in other parts of the forum. Unlocker doesn't work; command line security commands don't work; trying to take ownership doesn't work.
On investigation, the EXE was owned by me, but the compiler creates a new EXE with an unknown user as owner and although I am administrator, I can't change ownership, change permission or do anything with the file. After a while the file reverts to being owned by me and I can use it again.
Very puzzling. I'm using Avira as a virus checker and am wondering if it is to blame, but I can't shut Avira down unless I uninstall it. Any ideas?

Regards
Chris Seddon

Uninstall Avira just for a test - go off line in that makes you feel safer.

You can also try process monitor and filter on the tool doing the exe build.