Permission Error

Start services.msc look for the services which name starts with Peer or PNRP (totally 4). Startup is "manual"?

For how to use eventlog: Event Viewer - Open and Use in Windows 7

lkurrt said:

The first three commands resulted , it says another instance is already running.

The last command resulted.

start the last one again. Does it also say "another instance is already running"?

In services.msc you can select them as well and start them.
Also start this

Code:

sc start HomeGroupProvider
sc start HomeGroupListener

Are they succesfully running? Check services.msc. Also start type "manual"?

lkurrt said:

Yes it says the another instance is already running. And the home group provider and listener are set to autimatic (delayed start)

But can you start homegroup provider and listener?

lkurrt said:

Yes I turned them on thru msc.services

You told me they had startup type="automatic (delayed start)"
They were already started?

Do you have windows firewall turned on or a 3rd party firewall?
Check eventlog for related errors!