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Windows 7: Hang up at expanding files (various percentages, various error message

11 Sep 2012   #1

Windows 7 Pro x64, Vista home x32, XP Pro x32
Hang up at expanding files (various percentages, various error message

My setup is as follows:
i5 2500k @stock
Asrock z77 extreme 4
MSI 560 ti 448
8 gb ddr3 @1866 (2X4)
120 gb sandisk ultra ssd (windows drive)
1 tb 7.2rpm hd
650 watt seasonic x series psu

It all started a couple of weeks ago, I had switched out my p67 mobo for the new z77 one because the former died on me after 6 months of use. After making sure everything was in working order, I installed everything back into the case.

I had windows 7 pro 64 on my ssd at the time, and when I tried to start up windows on the new motherboard, a quick bsod would pop up about half a second into load and would never get past that. I figured I'd just do a clean install of windows and that would fix whatever was wrong.

Upon trying to re install, the installation would get hung up at "expanding files (0%)", even after moving ram, changing the ssd and disc drive from a sata3 port to a sata2 port, and various other suggestions I read on the internet.
I tried booting from a thumb drive and had a small amount of success; the installation would hang up at anywhere between 10-40% as apposed to 0.

I am using student upgrade media, which had worked fine for me on the initial install 6 months ago. I've tried re downloading the files, making a new iso and burning at various burn speeds (x8 down to x1), downloading the provided iso from the official microsoft site, and nothing seems to be working.

Last thing I tried was taking everything out except for the mobo, drive, cpu, 1 stick of ram, and the disc drive and still no luck.

Any suggestions? I've tried everything in the stickied thread to no avail, and have tried absolutely everything I can find on the internet relating to this subject. Should I buy the full retail copy or would that leave me in the same situation?

Any help would be greatly appreciated.

My System SpecsSystem Spec

11 Sep 2012   #2
Microsoft MVP


There is no point in buying full retail if you qualify for Student Upgrade as the installers are exactly the same - it's only the key which determines which will activate.

Is your BIOS EFI? If so remove EFI Boot disk from boot order, enable Legacy BIOS and install to wiped MBR disk. Set SATA controller to AHCI first to try install, then IDE mode.

Try wiping the SSD first with Diskpart Clean Command before install.

Will it install to HDD?
My System SpecsSystem Spec
11 Sep 2012   #3

Windows 7 Pro x64, Vista home x32, XP Pro x32

Thanks for the response.

Yeah, I tried installing on the hdd once I got home from work but it didn't really work

I had taken the EFI off the boot order as well, no difference.

After I had tried installing on the hdd I tried installing on the ssd without rebooting and the expanding files had gotten to 13%, which is the furthest it had gotten with the dvd. I don't know if that's just random or if that actually means something...

I'll hooking up the ssd to an older build and wiping it with diskpart when I get home.
My System SpecsSystem Spec

11 Sep 2012   #4
Microsoft MVP


There may also be a Legacy BIOS setting to enable in BIOS setup to disable EFI further. Read your mobo manual on the model's Support Downloads webpage for how to deselect EFI fully.

You can also try installing with EFI to wiped HD which formatted GPT to see what happens: UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums
My System SpecsSystem Spec

 Hang up at expanding files (various percentages, various error message

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