The pagefile.sys file in Windows is the virtual memory file that is saved on the C drive of your hard. It can get really big and become a space hog. Whenever you do not have enough physical RAM available Windows uses the pagefile.sys file to help out. With that said, it’s not always a good idea to disable or delete the pagefile.sys file so only disable it if you really need more hard drive space badly. Here’s how to disable and delete the pagefile.sys file in Windows.
1. Open the Control Panel
2. Click on System
3. Click Advanced system settings
4. On the Advaced tab of the System Properties window in the Performance section, click on the Settings button.
5. A new window “Performance Options” will open. Click the Advanced tab.
6. Under the Virtual memory section, click the change button.
7. This displays the virtual memory settings. Click the No paging file and then set.
8. A reboot will be required and the pagefile.sys will be gone.
If it is still there then try going over the steps one more time and ensure that the virtual memory is set to 0. Once that is done you can remove the pagefile.sys file.