Keep your RAM always free:
Sometime when we close some program Explorer does not immediate unload DLL files from the memory.
The DLL files still resident in the memory for a while and do not let the another application to use the memory in their position.
I will guide you to unload them from the memory as fast as we close the application to make the memory always free.follow these step :
1. Navigate to start>RUN>Type regedit>OK
2.Browse the register editor to HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows > CurrentVersion > Explorer
3.Create a new DWORD Value and define its name to AlwaysUnloadDLL then enter 1 into the value box.
4.Restart your PC
DONE !!