I have a 64-bit Windows 8.1 HP. It came pre-installed 7-Zip. When I extract it changes the file names automatically upon extraction.

On my old Windows 7 desktop I had WinZip and this never happened. So I purchased and installed WinZip on the Windows 8.1 and the same thing happened, it changed the file name automatically.

I have tried all over the net and on this site to find a solution but to no avail. I also compared WinZip settings on the W7 and I can't really tell if they are the same as it is different on W8.1

My real concern is that when I extract the folder, it changes the files names adding additional characters where there would be spaces and then an extension of numbers.

Windows 7 did not do this at all. Please help!!! How can I turn this off?

Original file name
Bride & Groom -7

Extracted new file name done automatically