File name plus (UTC date and time)

I had a virus and needed to contact HP helpdesk but on start-up all my files now look like this "filename (2013_07_30 16_31_09 UTC)" HP said do this manually but not an option. MS help desk advised me to reload windows 8 as I had a corrupted file but it did not help.

Can anyone advise how to remove the bracketed information?

Can you post a picture (screen capture) of what you mean please?

Make sure the window you want to capture has the focus.
Press Alt+Print Screen. That will capture the active window.
XP: Click Start then Run, type mspaint and press Enter.
Vista or Windows 7: Click Start, type mspaint and press Enter.
Press Ctrl+v to paste the picture in to the MS Paint window.
Click File then Save as and save it to your Desktop.

Start a new reply.
Click on the Browse button below the message input area.
Navigate to where you saved the picture, select it and click on Open.
Click on Attach This File.
Once uploaded, click on Add To Post to the far right of the uploaded file.
Scroll down and click Preview Post to verify the image shows.