Because QHMPL is a generic label, your adapter may be a “clone” of a or Edimax EW-7811Un . Those drivers often work flawlessly:
Here are the three safest methods to download the driver: qhmpl 0118 ul wifi driver download for windows 7
(for unsigned drivers): Restart PC → Press F8 before Windows loads → Select Disable Driver Signature Enforcement . Because QHMPL is a generic label, your adapter