Pagefile. sys is the Windows paging (or swap) file used to manage virtual memory. It’s used when a system is low on physical memory (RAM). sys can be removed, but it’s best to let Windows manage it for you.
How do I allocate my paging file size?
Increase Page File size on Windows 10
In the Taskbar Search, type “Advanced System“.
In System Properties, click Advanced tab.
In Performance section click Settings button.
Performance Options will open.
Here, under Virtual memory, select Change.
Uncheck Automatically manage paging file size for all drives.
How do I fix page file size?
To change the Pagefile size:
Press the Windows key.
Type “SystemPropertiesAdvanced”. (
Click on “Run as administrator.”
Click on “Settings..” You’ll see the performance options tab.
Select the “Advanced” tab.
Why is my pagefile so big?
One of the biggest culprits is the pagefile. sys file, which can soon get out of hand. This file is where your virtual memory resides. This is disk space that subs in for main system RAM when you run out of that: real memory is temporarily backed up to your hard disk.
How do I release pagefile sys without reboot?
Delete Pagefile using Registry Editor
Open the Windows 10 registry editor by pressing Win + R , then entering regedit in the box.
In the registry editor, go to:
Click “Memory Management,” and then double-click on “ClearPageFileAtShutDown” in the panel on the right.
Set its value to “1” and restart the PC.
Should I increase pagefile size?
Increasing page file size may help prevent instabilities and crashing in Windows. However, hard drive read/write times are much slower than what they would be if the data were in your computer memory. Page file size should only be increased when encountering out-of-memory errors, and only as a temporary fix.
Do I really need pagefile sys?
Because pagefile contains important information about your PC state and running programs, deleting it could have serious consequences and tank your system’s stability. Even if it takes up a large amount of space on your drive, pagefile is absolutely necessary for the smooth operation of your computer.