OK on PC1 ensure the the printer is shared. Then ensure it is on and active, not on standby.
On PC2 Open Control Panel Devices etc Hardware and sound Add printer Select "wireless, network or bluetooth printer" Hopefully the printer on PC1 should be listed. Click on it Install driver if needed, allow, when prompted. The process will complete and a test page can be printed.
If any of these steps fail let me know what, if any, error messages you get.