Windows 7 won't recognize XP PC in network

1. On your Windows 7 computer, click the Start button at the bottom left of the screen, then go to the Control Panel and choose Network and Sharing Center.

2. Click the link under "view your active networks" (if you've set up a Homegroup,the link should say "home network").

3. In the next window choose "Work network" that will switch you from a homegroup to a workgroup so your two computers can talk to each other.

4. Finnaly, before you can network the computers, you must assign the same workgroup name to both of them and SHARE folders in Explorer.