Here first backup registry Databse then Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\238C9FA8-0AAD-41ED-83F4-97BE242C8F20\7bc4a2f9-d8fc-4469-b07b-33eb785aaca0 Press Windows + R, type regedit and ok to open windows registry editor. Here is the solution that worked out for me Here we have some solutions you may apply to fix the issue. If it stops working, it can be a difficult problem to diagnose. Sleep mode is a great way of keeping your PC ready to go at a moment’s notice without wasting power.