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Windows 7: WINDOWS 7 will not install on this hardware.

31 Jan 2014   #1

windows professional 64bit
WINDOWS 7 will not install on this hardware.

Toshiba u845w-

originally comes with win8; so naturally I changed Bios to legacy and installed windows 7... the laptop comes with a 32gb pci ssd and after win7 is loaded there is no room to even download updates, decided to order up a larger pci ssd to load windows 7 on and I have checked bios settting a ton of times and I now get 90% of install of win 7 and I get a "windows will not install on this hardware"....any clues?

I had windows installed with a 32bit win7 home and ive tried 64bit now but I cannot figure out what im missing...

My System SpecsSystem Spec
31 Jan 2014   #2
Microsoft MVP


The 32gb SSD is a caching drive meant to speed up the hard drive, but they are installed in a RAID that needs a driver which apparently is not in the 64 bit Win7 installer. Since 32 bit performs better for >4gb RAM installs I would boot it's installer to reinstall your licensed version.

More found on this model missing RAID drivers during reinstall here:

A tutorial which explains reinstall where MSATA or Intel Smart Response (caching) technology is used: Install Windows on System with MSATA and ISRT - Windows 7 Help Forums

If you have further questions I'd ask in the tutorial comments section as Sandeep is expert on these types of installs, even for other makes than Dell. We also have others who can help you if needed.
My System SpecsSystem Spec
03 Feb 2014   #3

windows professional 64bit

that did the trick, thank you for the help!
My System SpecsSystem Spec

03 Feb 2014   #4
Microsoft MVP


Sorry I somehow duplicated my first link so you didn't get to see SanDeep's tutorial here: Install Windows on System with MSATA and ISRT - Windows 7 Help Forums

Glad what was posted helped though. Did your reinstall 32 bit? Is the MSata in a RAID with IRST enabled?
My System SpecsSystem Spec
04 Feb 2014   #5

windows professional 64bit

installed 64bit on 128gb ssd, I installed raid drivers from Toshiba's site and then both hard drives showed up. I picked ssd and it installed fine.
My System SpecsSystem Spec

 WINDOWS 7 will not install on this hardware.

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