What is the Difference?

Bibbster said:

gregrocker said:

There is some confusion between the Upgrade disk and the options which are on the Upgrade disk, which are also called "Upgrade" and "Custom" for clean install.

You can buy the Upgrade disk and use it to "Upgrade" Vista which will transfer all of your files and reinstall your programs, starting up pretty much like your Vista left off. Or you can choose the "Custom" install option and clean install over the Vista (files go into windows.old for later access), install to a formatted partition, or to a primary formatted second hard drive.

As far as portability, Upgrade disks supposedly inherit the lock (OEM) or portability (retail) of the underlying qualifying operating system, however MS has no mechanism to check whether it is migrated to other hardware, only that it is not used on more than one machine at a time.

so if i buy the new win7 Ultimate to upgrade from my win vista home premium i could click on custom install everything would go into a windows.old folder and i could bassicly delete all that ? :)

Exactly. Or keep what you need from it.

~Lordbob

gregrocker said:

In fact, there are reports that sometimes it can come alive and start running old programs from the dead.....usually around..........Halloween!!

Nice.

~Lordbob