NIS 2013 with Windows 8 issues

When running a virus scan (needed to reload PC to get the button active) it seems to lock up, ended up reloading PC, and did the same thing at a different place.

It also seems to be impacting email  from coming in, 71.4kb to receive and it was still trying to download 8 hours later, uninstalled NIS2013 (which locked up at 81%) and email now coming in.

Email being sent was also an issue, it implied it had been sent, but never recieved on other email accounts.

Decided to use the Windows Defender, built into windows 8.

 

I also hade issues with NIS2013 on a windows 7 laptop.

 

Spec: Windows 8 Enterprise, 8GB RAM, 1TB drive, Intel i5-2500, Radeon HD 6970 2GB