changing OS from 32 bit to 64 bit.

After 20 minutes still not shut down so I've had to shut it down manually !

After each of the 3 stages , configuration 1 of 3 , 2 of 3 and then 3 of 3 , I have had to shut down manually ???

I have just clicked onto computer from start menu and now I find that one of my drives is not showing ? Before , I had local disc (C) , HDD2 , the dVD RW drive and also drive (F) where I used to store all my photos , videos and music . This drive is not showing ????

After waiting for it to shut down for ages I got this blue screen suddenly stating driver power state failure !!!

"Driver power state failure" often refers to a problem entering or coming out of sleep. Maybe your PC is trying to enter sleep instead of shut down.

Go to Start>All Programs>Accessories>System Information to look for your BIOS version installed. Compare it to the latest BIOS version on the Toshiba site here which is 2.30 WIN: Driver Details - Toshiba

If you have a lesser BIOS version than 2.30 WIN then I would run the Update, making sure to follow the instructions given closely since failng to do so can cause serious problems.

If you have the latest BIOS version then boot into BIOS setup by rebooting and tapping the key given on first screen for BIOS Setup. Qosmio has Toshiba BIOS and every unit with Toshiba BIOS can be enter using ESC > F1 key. Some Toshiba units have Phoenix BIOS and it can be enter using F2 button at the startup. Once there find the tab to reset the BIOS to defaults. Take note first of the SATA controller setting which should be AHCI. Clear CMOS - 3 Ways to Clear the CMOS - Reset BIOS

There is another serious problem caused by ignoring the specific advice which was given you to use the latest official Win7 installer with SP1 provided in Steps 1 and 2 of Clean Reinstall - Factory OEM Windows 7. This means that the very latest drivers were not in the installer and you may be struggling without drivers that are required to run your System.

I would either download the latest ISO for your licensed Win7 version in Step 1 and burn to DVD using the tool in Step 2 of Clean Reinstall - Factory OEM Windows 7 to do it over, deleting all partitions during the booted install, or immediately install the Toshiba chipset from Driver Details - Toshiba

I've asked for some consultation on this from one of our Blue Screen analysts.

hi there.... ok my BIOS is toshiba, version 2.30 28/08/2009

Then reset the BIOS to defaults following the procedure I just gave you. Remember to take note of the SATA controller setting first. It should be AHCI but will need to be returned to the same setting after setting BIOS to defaults, unless you want to reinstall in AHCI mode. It may be too old to have AHCI choice.

Then install the Toshiba chipset I also gave you just above.

What Anti-Virus are you using now? I would uninstall it and install Microsoft Security Essentials.

The success of a diagnostics install depends upon sticking closely to the steps and using only the tools and methods in Clean Reinstall - Factory OEM Windows 7

There is no option to reset bios settings . THe only thing I can see is at the bottom of the page where it says select items and next to 'home' it says set default values . There s no mention of AHCI .

Or Sata controller setting ...

ve just noticed though, my bios is dated 2009 even though it is 2.30.... and the one on the toshiba site you sent as a link says date last modified 05/09/11 and that is version 2.30 ???