What is pagefile.sys?How to move pagefile.sys?

Many of u have encountered the problem that ur C drive is almost full and you might notice most of the space is occupied by a system file named "page.sys"

What is pagefile.sys?
   Pagefile.sys is a windows system files, acts as swap file and was designed to improve performance. Windows uses it as RAM in case the application you're running on your computer ends up needing more RAM than you actually have. Usually page file is 1.5 times than your actual physical memory size, it is the recommended minimum size. The maximum size is 3 times than your actual physical memory size. Pagefile.sys is a hidden file. It means that you could see it in windows file manager only if you checked 'Show hidden files and folders' in Folder Options.



How to Move pagefile.sys to another Drive?

•       Right click on "My Computer", or the "Computer" item in your start menu and click on properties.
• In Windows 7 click on the Advanced system settings link.
• Click on the Advanced tab.and then under Performance, click Settings.
• Click the Advanced tab, and then under Virtual memory, click Change.
• In the Drive [Volume Label] list, click a drive other than the one on which Windows is installed (Windows is usually installed on the drive C). Under Total paging file size for all drives, note the value that is displayed next to Recommended.
• Click Custom size, and then type the recommended value in the Initial size (MB) box.
• Type the maximum size that you want to allow for paging in the Maximum size (MB) box, and then click Set.
• In the Drive [Volume Label] box, click the drive on which Windows is installed (usually the drive C), and then use one of the following steps:
• If you do not want a paging file on the drive, click No paging file, and then click Set. A message similar to the following message appears:
• If the pagefile on volume C: has an initial size of less than 126 megabytes, then the system may not be able to create a debugging information file if a STOP error occurs.
• Continue anyway?
• Click Yes.
• 
  
• If you want to keep the minimum size of the paging file on the drive, click Custom size, and then type a value that is equal to or greater than the amount of RAM in the computer in the Initial size (MB) box. Type that same value in the Maximum size (MB) box, and then click Set.
• The following message appears:
• The changes you have made require you to restart your computer before they can take effect.

Click OK, click OK, click OK, and then click Yes when you are prompted to restart the computer.