I have a 5/6 year old Dell Dimension 5100, 3mhz pentium 4, 5GB ram and 150GB HDD and want to upgrade from XP to W7. I have done the upgrade advisor thing and it says everything should be hunky dory apart from .net 1.1 network not working, but as I already have .net3.5 I can't see that as a problem. So I bought an upgrade disc which is when the problems started. It loads, starts to expand the programs up to 27% when it needs to re boot. As it restarts I get a b;ack screen with "starting windows" on it. When I restart XP it says "This version of windows could not be installed, please check compatibility before trying again" - or something similar. I have tried everything I can think of, even formatting the whole drive and re installing xp, but it still hangs at the same place.
I have tried Microsoft and even spent an hour on the phone to Dell and they can't tell me what the problem is.
Please can someone solve the mystery.
Try a different cd/dvd rom drive or external drive.I have had this problem and used a different drive and hey presto it installed, even though the original drive showed no problems before and i am still using it.
Another link on doing a clean install of Win7 upgrade, link, it shows not to activate during installation and another link for clean install. It also mentions that you can have problems installing Win 7 on an older motherboard which has more than 2 Gig of ram. (from the clean install link).
As you are upgrading rather than clean installing suggest you post details of version of XP and Version of upgrade home, pro,ultimate . and type ( 32 or 64 bit )
Presume you did get the activation key with the disc you purchased which could be a fault on the disc.