Page File Deletion + Reallocation



Page File Deletion & Reallocation Tutorial
The following will instruct you on how to delete and reallocate the page file (c:\pagefile.sys).

Start by clicking on the applicable Windows OS:




Windows 8.1 and Windows 8 - Bring up Search screen (press WIN + S keys) and type/paste sysdm.cpl; select the entry below it - (Windows 7 and Vista - see next step) -
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Windows 10, Windows 7 and Windows Vista - Click on START; type/paste sysdm.cpl into the Start Search box; select sysdm.cpl from the search listing results
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Click on "Advanced" tab; click on "Settings" (hover mouse over image to enlarge it) -
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Click on "Advanced" tab; click on "Change" (hover mouse over image to enlarge it) -
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1. Un-check "Automatically manage paging file size for all drives"
2. Check "No paging file" box
3. Click on "Set"
4. Click on "OK"
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This screen will likely appear -- if so, press "OK" -
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Re-boot your system.



Next, we need to remove the "hidden" and "system" file attributes from the page file.

Bring up an Admin CMD prompt -
Open an Elevated Admin Command Prompt (CMD) - Windows 10
Open an Elevated Admin Command Prompt Window (Windows 8 / 8.1)
Open an Elevated Admin Command Prompt Window (Windows 7/ Vista)

Type or paste the following into the CMD screen:
Code:
attrib -s -h %systemdrive%\pagefile.sys

When complete, leave the CMD screen open for now.

Next - delete the page file.

You can use Windows Explorer -- locate c:\pagefile.sys, RIGHT-click on the file, press & hold the left SHIFT key down while clicking on DELETE. This is called a "hard delete" - it will bypass the Recycle Bin. A hard-delete is preferred as the page file may be too large for the Recycle Bin or in cases of low hard disk space.

My preferred method - delete the page file via CMD. Type/paste the following into the Admin CMD screen left open from the ATTRIB step. If you closed the CMD, screen, simply follow the instructions to open a new Admin CMD screen -
Code:
del /a /q %systemdrive%\pagefile.sys


Deletion of Paging Files on Drives other than c: (System Drive)
Drive c: is the usual designation for the system drive (or "OS drive"). You can delete page file(s) from other drives or partitions via Windows Explorer or by substituting the drive letter for [B]%systemdrive% in the CMD screen.

Example: To delete a paging file on drive j: - substitute j:\pagefile.sys for %systemdrive%\pagefile.sys


For info, %systemdrive% is an environment variable (ENV VAR). The system/OS drive/partition letter followed by a colon (:) is substituted by Windows for the ENV VAR as can be seen here by a simple CMD ECHO command - (hover mouse over image to enlarge it) -

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Time to reallocate the Page File/ Turn virtual memory back on.

Go back into the page file screen - follow the above steps except for the last one.


Check Box #1 to allow Windows to manage paging files; then click on OK -

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You will likely see this screen:

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Re-boot your system. Page file deletion and reallocation are now complete!

If you would like assistance, please start a new thread in the appropriate OS forum:
Microsoft Support & Malware Removal - Sysnative Forums







Additional Information from Microsoft
RAM, virtual memory, pagefile, and memory management in Windows
RAM, Virtual Memory, PageFile and all that stuff
Change the size of virtual memory - Windows Help
How to determine the appropriate page file size for 64-bit versions of Windows
What is virtual memory? - Windows Help
Page File How big is Yours ? - Jane Lewis's Weblog - Site Home - TechNet Blogs