hi, Select My Computer and click Right mouse button. Next select Properties Option and select Advanced Tab Option Next see one Performance option side Setting Button, click that button. Next select Advanced Option, see below one Virtual Memory Option, and select Change Button. Next Operating System (Windows Install)Drive and Select Custom Radio Button Option. ..See the Below value and enter same or some difference value. Example : Top Box Value : 4000 Below Box Value : 4150 And select Set Button. Automatically taken 4000 MB Virtual memory.