Hi,
Any reinstall will require a new activation, and in general you will need to
phone in activations subsequent to the original, even on the same hardware.
Before doing a reinstall (and incidentally, you cannot do a repair
installation as with previous Windows versions, only a new install), you
would be wise to backup any data you wish to save to removable media or
other hard drive.
By the by, problems such as you describe can frequently be ascribed to
Internet Security Suite programs such as those sold by Symantec and McAfee.
Before going to the extreme of starting over, you may want to examine these
as a possible cause.
--
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help -
www.rickrogers.org
My thoughts
http://rick-mvp.blogspot.com
"Rev Martin Hazel @ipagan.org.uk>" <martin<nospam> wrote in message
news:BB790D33-ADB1-4BF7-83C8-...
>I have a PC with Vista Ultimate installed, and I keep getting massive
>glitches on downloads, MSN Live and other programs, so the thought of
>re-installing got me thinking, If I reinstall I will end up having to phone
>MS to get an updated activation, so is there any way of repairing a full
>install without loosing all my data?
>
> martin