Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: New build, but old hard drives

17 Nov 2011   #1

Windows 7 Home Premium 64bit
New build, but old hard drives

I am building a new rig and going to keep my old hard drives. One has Win 7 OS in it and the other is used for storing pics, movies, and the like.

Everything is going to be new (mobo, memory, vid card, cpu), but the hard drives are the same.

Is it possible to boot up the system using the hard drive with the Win 7 OS in it? I was planning on going to the BIOS straight away to make the system boot from the Win 7 DVD that way I can format the hard drive and perform a new install of the system.

Is that possible?

My System SpecsSystem Spec
17 Nov 2011   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit


Your first question asks if you can boot from the HD.

You then state your intent is to boot from the Win 7 DVD.

If you want to do a clean install, you would do the latter, not the former.

It may boot from the hard drive if that is what you want to do, but you may have to then run a repair install since you have changed so much hardware.

I'd do the clean install, but you can try without--it may or may not ultimately work out.
My System SpecsSystem Spec
17 Nov 2011   #3

Windows 7 Home Premium 64bit

Thanks for the reply.

What I meant in the first question was that if my pc would turn on at all without shorting or something or other.

I plan on booting up the system with the new hardware and onld hd. Then go straing into the BIOS to do a CD boot up and restart it.

Then proceed with a clean install of Win 7 on the old hd. (That should also format it, right?)

I just want to be sure that everything will work properly after the clean install and not have the hd partitioned in two with two Win 7 in each.
My System SpecsSystem Spec

17 Nov 2011   #4

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

Yes, it will turn on and not short.

You are on the right path. Immediately go into BIOS, change to boot from DVD first. Reboot into the DVD and proceed with the installation as usual.

You will be given the choice during the install to choose the desired partition for the install. If you choose what is now the C partition, it will be reformatted and you will end up with a single Windows 7 installation.
My System SpecsSystem Spec
17 Nov 2011   #5

Windows 7 Home Premium 64bit


Thank you!

Will give that a go.
My System SpecsSystem Spec
17 Nov 2011   #6
Microsoft MVP


If you want to boot Win7 on the same HD on the new hardware, SysPrep it first on the old hardware to remove all drivers, SID's and HID's. Then it will start up like a new computer does when booted. SysPrep to move HD to another computer
My System SpecsSystem Spec

 New build, but old hard drives

Thread Tools

Similar help and support threads
Thread Forum
BSOD -Remove any newly installed hard drives or hard drive controllers
At start up I am getting the blue screen which says "remove any newly installed hard drives or hard drive controllers" I did take out the hard drive and connected it to another computer using a sata to usb cable, but the drive was not recognized so I put the hard drive back. Now when I am...
BSOD Help and Support
External Hard drives and flash drives security
I have a new computer plus a couple of other computers and I have some external hard drives and flash drives. what is the best way to check these devices to make sure they are clean, will just connecting them and viewing them or running AV and other security checks propose a risk to the computer...
System Security
All Flash Drives & External Hard Drives NOT ACCESSIBLE?
I set up a new computer. Windows 7 Pro 64x Everything was fine but then I connected a flash drive to it and I get: Location Not Available H:\ is not accessible. Access is denied If I go into the properties to the “security” tab, it says “you do not have permission to view or edit this...
Hardware & Devices
Flash drives and external hard drives
I have windows 7 pro and recently I have not been able to open up a new folder on any external hard drive or flash drive that I use with my computer. When I use these same flash and external hard drives in another computer it works fine, my initial thought is, there is something disabled in my...
Hardware & Devices
A Virtual Hard Drive? Two separate hard drives now run Win 7 x64
While looking into another possible problem with a hard drive on my system,I began unplugging the devices (there are four of them) to isolate the problem and in doing so, I I seriously corrupted C drive, and began getting 0x7b BSOD messages. First I tried to do a System Repair with the Repair...
Backup and Restore

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 06:33.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App