In article , =?Utf-8?B?TEw=?=
says...
After installing SP1 on Vista, the system properties report that I have 4Gb
RAM installed, which is true.
However it seems that from the Task Manager, it only can handle up to 3 Gb
RAM. So is the other 1Gb wasted? Or is it actually in use for other invisible
purposes?

It is wasted.

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