Hi, Debi.
There are just two main distinctions between Upgrade and Full Retail disks.
1. Upgrade costs less.
2. Upgrade will insist on seeing a qualifying version of Windows already
installed. (Ray's suggestion of "just show me the qualifying disk" used to
work, for WinXP and prior, but now Win7 won't be satisfied with that; it
will want to see your Vista already installed.)
Once the Upgrade has satisfied itself as to #2, the actual install procedure
is the same with either disk.
An OEM disk is even cheaper - but there are reasons for that! You don't
want OEM in this situation.
While an Upgrade installation is possible (with either Upgrade or Full
disks), I usually am more comfy with a Clean Install. That is especially
true in a situation like your daughter's where the Vista installation has
been compromised. An Upgrade installation might very well carry over some
of the problems that she is trying to get rid of.
RC
--
R. C. White, CPA
San Marcos, TX
Microsoft Windows MVP
Windows Live Mail 2009 (14.0.8089.0726) in Win7 Ultimate x64
"Debi" <> wrote in message
news:...
> Hi Guys,
>
> My daughter has a laptop running Vista Home Premium - It's having all
> sorts of problems and at one point had loads of Virus' & Malware (she
> didn't know any better). It's now running dreadfully slow and the computer
> man in the store said the best way would be to flatten it and start again.
>
> I was thinking about doing this but now that Windows 7 has come along
> maybe that's the way forward? I see there's quite a big difference
> between the Full Retail & Upgrade versions (someone told me I could buy a
> OEM version?). Anyway, my question is will any of the problems that I'm
> having remain if I buy the upgrade version? Will the upgrade version allow
> me to format and start again?
>
> Any help would be appreciated.
>
> Kindest regards,
> Debi :-)