Terribly long install time? (Ultimate 64bit)

Okey, so my problem is that the installation of Windows 7 Ultimate takes way longer than expected to install. So far I've botten to about 80% on "Expanding files" after about 7 hours. My specs is in my profile, unfortunatly I can't be nörd precise at this moment, as I havet no possibility of checking while installation is on, but the Microsoft Upgrade Advisor (or what the name was) told me it was good enough to run Windows 7 in both 32 and 64bit. The copy I'm installing is Windows 7 Ultimate 64bit (Swedish DVD), bought packaged with both 32bit and 64bit DVDs. I'll copy the pre-made questions for installation problems under here, with as accurate info as possible.

Also, sorry for eventual spelling and grammar mistakes, I'm posting from my mobile phone.
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Current Operating System, pre-install
* Do you have a single OS on your computer? Yes, Windows XP Professional
* Are you planning on multi-booting with this installation? No, but I am installing 7 to another harddrive and will remove XP later
• Are you multi-booting now? No

Current Hardware
• How many internal hard drives (HD) are connected to your system? 3
• Are they IDE or SATA? SATA
• How many DVD drives are connected to your system? 2
• Are they IDE or SATA Drives? No idea, connected with a large, long, flat cable and a 4pin power cable.
• Any external HDs used? No
• Are they connected by USB or eSATA? ---
• Check Disk Management for any HDs listed with a yellow triangle and explanation point? They all show up fine during installation. If thats not enough I don't know how to check.
• Is this a New Clean HD? Yes
• Have you pre-formatted the HD? No, just putt it in and chose it while installing.

Windows 7 installation details
• Which build number and version of Windows 7 are you installing? Ultimate 64, retail dvds, don't know build number.
• Are you installing a 32 bit (x86) or 64 bit (x64) OS? 64bit
• Where did you get the ISO file from? I didn't, bought on dvd.

Installation Media
• Using a USB memory key? No
• From another partition or hard disk? No
• From a DVD? Yes
• How did you burn the DVD? Briefly describe the steps you used.I didn't, bought them from a retailer.
• Which ISO burning software did you use? ---
• At what burning speed and with Verify checked? ---

Other
• Any Over Clocking of the RAM, CPU or GPU? No, havn't modified them in any way.

Unplug all other HD's and start installation again using Custom>Drive Options to partition as you wish and format.

If this fails, check that you have latest BIOS version on the Support Downloads webpage for your computer or mobo model.

Next try clearing the CMOS: Clear CMOS - 3 Ways to Clear the CMOS - Reset BIOS

Then check the SATA controller setting. Try AHCI first, then IDE if necessary.

Test your memory using WMD test

Thanks for the help, but I for through the installationen after about 12 hours (might have gone faster, the installation part was done when I woke up. Although the problems just keep on. Windows started automaticly after install but with CPU usage constantly on 100%. I googled it and found out that it could be fixed by disabling my internal Audio controller. By the time I found this out Windows was restarting to install updates, and now it won't turn back on. It gets stuck on "Starting Windows". Right now I'm attempting to repair through the DVD, but with low expectations.

In case I have to reinstall, would inserting a temporary soundcard count as disabling my internal (built-in) card and eventually solve the problem?

Did you follow the troubleshooting steps given in my earlier post?

To those, add booting and running the full test for your maker's HD diagnostics/repair CD scan: Hard Drive Diagnostics Tools and Utilities (Storage) - TACKtech Corp.

I'll get right to all those things after testing with my onboard sound disabled. Also, I suspect that the problem I had when I got it fully installed (100% CPU useage) might be the problem during installation too, since it has all the same syptoms (I think) with really slow loadingspeeds and delays when I click or write. Is there any way to see CPU useage during install?

Also, I've tried installing to 2 different harddrives and both from the bought DVD and from a bootable 8GB USB-memory, problem is the same on all of them.

You may as well start over from scratch, otherwise you will likely be chasing problems from now on. Disable onboard sound in bios before starting the installation of Win 7. I learned this the hard way as I have had sleep mode issues ever since the beta days and random system lockups also. Since doing a clean install a month ago with onboard sound disabled, I have had none of the prior issues.

The best advice I can give is to start the install with the minimal amount of hardware in the computer. If you start the install from within Windows you are doing an Upgrade install. To do a clean install you must boot from the DVD and choose custom install. When you get to the screen that shows the drive partitions, I select drive options and delete all partitions until it all shows as unalocated space, then press next and Win 7 will partition and format automatically or you can specify the size partition by choosing "New". I have done more than a dozen clean installs of Win 7 and generally it takes about 20-40 minutes. I helped my sister with a upgrade install over Vista that took over four hours on a one year old HP laptop.

I hope you get it sorted real soon.

Pat

Try also wiping the HD before install: SSD / HDD : Optimize for Windows Reinstallation

I tried installing with onboard sound disabled, still with the same problems. Also, I am doing full (custom) installations by booting from the dvd and installing to a newly-bought harddrive (I have tried others too) and I am deleting all the partitions before installing. Next step (if I don't get this one working) is to remove everything but 1 harddrive, 1 dvd-player and my mouse + keyboard.