Windows Sharing won't stay ON

Hello, I had a malware problem that Kestrel helped me fix (see my thread in the Malware Removal section for reference if needed). I've found another Windows function that seems to not be working due to left overs from the virus/cleanup process. For reference, I have Windows 7 Home Premium 64 bit.

I run a render farm off this computer, and the other networked computers cannot see/access my computer any longer. I see that the certain files are no longer shared as they were. When I try to share them, nothing happens.

Under the Network, I get a message that says "Network discovery and file sharing are turned off. Network computers and devices are not visible. Click to change..."

When I click to change, and choose "Turn on network discovery and file sharing", it gives me the same message again.