new builds of rpcs3 are not responding

This could be a possible fix:

1) Run cmd.exe as adminstrator, once the cmd prompt opens up, type the following and press Enter:

bcdedit.exe /set {current} nx AlwaysOff

2) If done correctly, you'll see the message "The operation completed successfully"

- If you get an "Access denied" message, then you didn't run cmd.exe as administrator.

3) Next, restart your PC

4) After your PC restarted, try running RPCS3 again

You mean workaround. It shouldn't be trying to execute NX memory anyway. You should also mention that he should turn it back on unless he wants an attack vector on his PC.