.. happen because you thought that..

1. your friend was right about having everything run in RAM, so you deleted the page file..

2. you thought that you could recoup some badly needed and, in your opinion, wasted hard drive space, so you deleted it or made it smaller..

3. you filled up your hard drive with data files etc to the point where the inclusion of a frog's hair would not be possible..

4. all of the above was a good idea at the time..

#1 applies to the newbie who lacks assertiveness skills in the face of 'expert' friends. Next time, tell them to leave it alone.

#2 applies to the tinkerer who has upgraded an operating system to the latest variant, but who has failed to take into account that the new OS takes up more space than the old one did, OR has taken into consideration the minimum requirements as stated on the side of the box and not left enough room for updates, other applications etc.

#3 applies to people who know that one can't fill a vessel up to absolute capacity and do anything with it without some ensuing spillage, but can't see that a hard drive in a computer has the same limitations.

#4 come on, you know who you are!!

So you want the warning to go away?

A registry hack isn't going to save you. Sorry.

#1 user (Vista).. Control Panel > Advanced System Settings > Advanced tab > Performance Settings button > Advanced tab > Virtual Memory Change button..

Check the System  Managed Size and then click on the Set button..

#1 user (XP).. Control Panel > Advanced tab > Performance Settings button > Advanced tab > Virtual Memory Change button..

Check the System  Managed Size and then click on the Set button..

#2 user.. like it or not, you need more hard drive space, either internal or USB external. You need to either move data to the new drive, or reload the OS onto the new drive and keep the old one as a storage area. Then do the same as #1..

#3 user.. you need to understand that a hard drive needs space for your files and system files that are kept hidden for your own good, and that Windows needs a certain amount of space in order to manage the files. Imagine the hard drive to be like a sliding block puzzle, where there is always one free space. Either get somebody to do what #2 has to do, or try it yourself. It isn't too difficult, especially if you just attach a USB external drive.

Note that a system/boot drive will flash up the 'low virtual memory warning' before it flashes up 'low disk space'.

If you want to understand 'virtual memory' better, read this. The article was written by the late, great Alex Nichol

http://www.aumha.org/win5/a/xpvm.php