Mark F. wrote:
You may not have enough free space on the hard drive. Windows relies
on having free disk space for it's page file, which is a temporary
cache space for disk I/O.
No, it's not "temporary cache space," or any kind of caching at all. In
fact, paging is almost the exact *opposite* of caching.
Caching is using a faster medium in place of a slower one (usually either
RAM instead of disk, or high-speed RAM instead of ordinary RAM) to speed up
operations. Paging is using a slower medium instead of a faster one (disk
instead of RAM), which slows down operations, but makes it possible to do
more than you could with the limited RAM you have.
Even PC's with 2GB of ram will need to have
a decent sized page file. Usually about 1.5 times the size of the
installed ram.
Although that 1.5 times the installed RAM is the default, it's not a good
one. Since the page file substitutes for RAM, the more RAM you have, the
*less* page file you need. The default exists only to provide space for a
full dump, which isn't normally needed.
For more information on the page file, this article by the late MVP, Alex
Nichol, is excellent: "Virtual Memory in Windows XP" at
http://aumha.org/win5/a/xpvm.htm