Windows often spills data over into the page file even when there’s free memory available, which can cause a drop in performance. You can’t entirely rectify this, but you can do the following to reduce the number of accesses to the page file. In the Registry Editor, browse to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSessionManagerMemory Management. Double-click on the DWORD “DisablePagingExecutive” and change its value to 1