This has occured every morning since I've downloaded the latest candidate of Windows 7. After my usual nights work I shutdown my laptop (Toshiba L305D-5881) and the next morning my computer is unable to boot at all. Every time it attempts to load into windows then the power just dies. After this occurs I start bluescreening. It eventually results in a repair fix. I have tried to use other windows media and go back while under the influence of this issue and any install cd I drop in (XP, NT, VISTA) all come back with errors. Eventually i removed the physical drive wiped it, tested both the memory and drive for physical errors (both came back fine). After wiping the drive on another computer I was able to throw on a copy of any of the prior install cd's with no problems. To see if this was isolated I reinstalled another fresh from the site, copy of W7, and installed. Next morning same thing, boots up, power dies, rinse and repeat...Any ideas whatsoever?P.S. Im using a 64bit version of W7, and the laptop has 4gig of ram instead of the standard 3

Tim - Exactly which build are you using?

Sorry at the moment I can't grab a build number off my laptop as I have been going through the hour long boot repair but the iso I used for the install is the most current:7100.0.090421-1700_x64fre_client_en-us_retail_ultimate-grc1culxfrer_en_dvd

Tim - Just checking - that certainly sounds like build 7100... That, by the way, is far from the latest build - there are newer ones, except they are not public builds and as such, would be off limits for discussion in this forum.Now then... I'm assuming your laptop is similar to this one. If so, it would seem to be fairly up to date as far as the hardware is concerned - so that, in and of itself shouldn't be a problem. At any rate... It sounds like there may be a driver issue of some sort at work here. These days most BSODs are caused by a hardware device going bad or it's respective driver. When you get done with the boot repair, check the device manager and see if there are any devices that are defined as "unknown" or are marked with a red X. You will want to check to see if there are any newer drivers for those items.