UAC is the option where a program will ask permission before doing some that is potentially dangerous. You can decide whether or not it should prompt you when installing software.
"Insufficient disk space" is reported when using CONVERT.EXE to convert a file system from FATx to NTFS.
Sometimes the OS needs additional files after the OS is installed. It normally gets them off the installation CD. This change allows you to get the files from somewhere else like the hard disk.
A slip-streamed XP id a clean copy of Windows XPpro with the necessary service packs, hotfixes, and anything you want already in place. It can be used to make an installation on many computers with the necessary applications already in place, You can use it to reinstall after a bad infection or system crash, or get rid of the useless "free" OEM software.
In XPpro you can create a disk to log on to your machine and allow you to reset the password.
The distribution CD is used for installation and troubleshooting a Windows installation.
When installing a Windows system, you need to answer a lot of questions which could be difficult when you are installing on several computers that are identical and the answers would be the same.
You can use a text file to specify those answers and let install without having to sit around waiting for the next question.
You need to reactivate your OS whenever Windows thinks you've made too many changes to the system. A reinstallation is "too many changes". But you can trick your computer into ignoring the reinstall if you have made no hardware change since your last installation.