Help exporting issue

I have racked my brains for the last 24 hours

I am a full time daily user of cubase which i use 6 days a week

Today when coming into the studio I’ve noticed that once i export all different projects when they hit 50% the export takes around 30min to complete. I have tested exporting from different drives the projects are based on to different drives and get the same problem.

Any ideas how i can diagnose this issue? I don’t know its my drive, processor or memory? The windows 7 machine is less than 1 year old

I have restored my drive to a earlier back up that was working last week and still have the problem.

PS I have isolated this down to TC power core plugin which seams to be the issue. Its abit strange considering it was has been working great for the last year and only see problems now