Step 1: you have to start "Run", You can do it by searching it or by shortcut key," windows key+r ".
Step 2:Now first type prefetch and press enter.
Repeat all steps by replacing prefetch with temp and %temp% in Run.
Do it, It will increase the speed of your PC as well as free the space.
Step 3: It will ask for permissions, press continue. Then prefetch folder will be shown on your PC. Press Shift+delete and select yes to delete it permanently.
Repeat all steps by replacing prefetch with temp and %temp% in Run.
Do it, It will increase the speed of your PC as well as free the space.