I just installed KB4480970 on my Windows 7 computer
LAB-PC. Now none of the other machines on my network can access the folders and printer I have shared from this computer.
Everything was working fine before the update. Turning off the Windows firewall didn't help. I can ping
LAB-PC from other computers.
If I try to access my share "Test" on LAB-PC from another computer by typing
\\LAB-PC\test into Explorer's address bar, I get the error:
Windows cannot access \\LAB-PC\test
I tried mapping a drive to LAB-PC by running
net use Z: \\LAB-PC\test and got the error:
System error 6 has occurred.
The handle is invalid.
I'm running Windows 7 Pro 64-bit. My computer is not in a domain. How can I fix this?