Jude,
Trying a roadmap for win 10.
First go to the control panel and select Power Options.
Select “Change Plan Settings”
Select “Change Advanced Power Settings”
Scroll down and select “Processor Power Management”
Make sure not to alter the system cooling policy.
Look at the minimum and maximum processor state. If the max percentage is less than 100%, change it to 100%.
If the max setting is already at 100%, the problem is elsewhere.
John