Adding an HP print queue from a Windows Server 2012 R2 print server on a Windows 7 / Windows 8.1 / Windows 10 system fails with the error:
Windows cannot connect to the printer
Operation failed with error 0x0000007e
Delete the “BIDI” key from:
You can essentially delete the “CopyFiles” key as well.
** Please backup the registry before attempting this fix. **