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pagefile.sys-what is it?

2045 Views 2 Replies 3 Participants Last post by  keymaker
I have purchased an internet cleaner and it said it would clean the "pagefile.sys". What is this first of all and since it says it cleans it at shutdown why does the file still say it has 384 mb in it after I restart the computer? For instance it says on the properties tab " modified (date and time with 384 mb) " then " last accessed (date and time with still 384 mb) ". Is the cleaner working or not for the pagefile? Someone please enlighten I would really appreciate it. Thank you. I'm running windows xp sp2.
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Hi nettizen,

the page file is a set amount of your hard disk space which is used as an extension of your RAM in order to free up virtual memory.

Some people prefer to clean or delete the page file on shutdown as an extra security feature but this makes the shutdown process slower depending upon size. It still shows as the same size when you reboot as the amount is reserved space on your hard disk.

Personally, I don't clean mine on shutdown as its over 1.5GB's so shutdown can take a few mins plus I'm fairly happy with the security on my PC.

The size of the page file can be altered but it's best left at the default setting which I think is about 1.5 times the amount of RAM you have.

Hope that helps :)
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here is a good link on pagefile and what to set your pagefile too depending on the amount of physical memory installed:

http://www.ultratech-llc.com/KB/?File=Pagefile.TXT
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