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: Help, switching from Ubuntu to win7

30 Nov 2011   #1

xp 32bit, win 7 64bit
Help, switching from Ubuntu to win7

Hi everyone
Thanks for letting me into your forum, this then would be my first post.

I recently purchased a high perfomance computer which is running on Ubuntu.
I have tried it but honestly can say that I am so conditioned to the windows platform that i find Ubuntu absolutely horrendous.

Anyway, I bought win7 Ultimate (contained both 32 and 64 bit versions). I want to install the 64bit version onto the gaming Pc I have bought as a present for my son.

I have also bought a new 2tb hard drive and installed it into the PC along with the existing 260gb HD which contains the Ubuntu.

Using Ubuntu disk manager i tried to format the 2TB hd but when I tried to format it it returned a message that the hd was 512kb out of line.

If I alter the bios to boot from the 2tb hd, it just tells me that it is a non bootable system disk.

Could you good people tell me the procedure for formatting a new HD ready to accept win7 using ubuntu.

I also have a copy of winxp sp1, could i install that first to facilitate the the install procedure for win7?.

By the way, it is the 64bit version I want to install and i dont mind losing Ubuntu at all, in fact, the sooner the better.

Thanks in anticipation



My System SpecsSystem Spec
30 Nov 2011   #2

Microsoft Windows 10 Professional / Windows 7 Professional

Disk - Clean and Clean All with Diskpart Command

Clean the disk at windows setup, hit shift+F10 and run diskpart on the command prompt, follow tutorial.
My System SpecsSystem Spec
30 Nov 2011   #3

xp 32bit, win 7 64bit


Thanks for the speedy reply.
When you say "Clean the disk at setup", do you mean the 260gb hd with ubuntu on it or the new 2tb hd?

Afraid you will have to treat me like a complete novice as it probably best describes my ability. Lol.

If you mean the new 2tb hd, when do I press the shift+F10 ?, is it when the bootup gets to the point where at the botton of the screen it says "Press Esc for boot menu and Del for setup" ? because after that page, the pc lists the IRQ devices and then prompts the message "Non bootable disk"

My System SpecsSystem Spec

30 Nov 2011   #4

Microsoft Community Contributor Award Recipient


All Linux code must be deleted using the CLEAN ALL command.As you have had linux on the HD you need do a Clean all & full format.

1) Boot DVD & Press Shift+F10 (for command prompt)
DISKPART : At PC Startup
2) Boot DVD, & Command Prompt at Startup
(for command prompt)

Type in command line

SSD / HDD : Optimize for Windows Reinstallation

For better help with problems, Can you post your specs.
Filling out System Specs
My System SpecsSystem Spec
30 Nov 2011   #5
Microsoft MVP


You shouldn't have to clean a brand new HD, just unplug the Ubuntu HD, boot the Win7 DVD, select Custom install, create a partition around 100gb, ignore the 100mb System Reserved partition it creates for you, then select the target partition to format and click Next. Illustrated steps here: Clean Install Windows 7

Only if it fails may you need to wipe the HD with Diskpart Clean command to clear the boot sector of any Linux code. I'm not sure why you would involve Ubuntu in a Win7 install.

After install you can plug back in the Ubuntu HD and when you want to boot it use the one-time BIOS Boot Menu key given on first boot screen. No need to use GRUB at all as you have separate HD's which is the cleanest and safest way to avoid GRUB corruption of Win7.
My System SpecsSystem Spec
30 Nov 2011   #6
Mark Phelps

Win7 Pro 32-bit, Win8 Pro 32-bit

I would agree with NOT installing GRUB to your Win7 drive.

However if you want a non-BIOS way of switching boot between Win7 and Ubuntu, consider downloading and installing EasyBCD v2.1.2 from NeoSmart Technologies. It has a GUI for adding entries to the BCD and will handle Linux OSs. I use an older Ubuntu version on a laptop and access it through the BCD, through an entry added with EasyBCD -- because I didn't want to mess with the MBR on the laptop's drive.
My System SpecsSystem Spec
30 Nov 2011   #7

xp 32bit, win 7 64bit

Thanks for the replies.

First of all, as requested, I will post the system specs.

Athlon 64 3200+cpu
2x512 mb memmory
Pny geoforce 6600 graphics
DFI lanparty UT nf3-250gb motherboard
6x sata ports
Raid capability
2xIDE ports
IEEE 1394
8 channel realtek audio
1GB network socket
1x 260 gb HD containing Ubuntu
1x 2TB HD new
Koolance tower with liquid cooling system

Ok, I tried to boot from CD with no success. When I pressed "esc" at the first screen to get to the select "Boot from" screen, the CD/DVD was not listed though the flopy disk was.

If I select DVD as boot priority in the Bios, then it tries to reboot but I get the message that it has a non system disk or non bootable disk or it gets hung up at "Checking DNI Pool" (i think thats what it said)

Both of these hard drives are not listed as "Primary and secondary internal drives", they are listed as external drives as, I believe, they are sata drives connected via data cable to the motherboard but not via the old double bank multi pin plugs of the early 3.5 inch drives. (does that make sense?).
My System SpecsSystem Spec
30 Nov 2011   #8
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8

Before you do any installation, think about the ramifications.

You say that this is a high performance PC. And you want to install Win7 on the sloooow 2TB drive. I don't think that will do this system justice.

Invest another $100 for a 60GB SSD (just for the OS) and you will really ge a high performance system. The access time to the SSD is 150 times faster than to your sloooow HDD - and that's what will make the difference.

If you need more info - ask. We will be glad to advise and guide you.
My System SpecsSystem Spec
30 Nov 2011   #9

Windows 7 Ultimate x64

There should be nothing you have to do. You simply boot from the Windows DVD, and when you install, you have the option to create and format your drives.

Sounds to me like the CD drive is having some type of issue and won't let you boot from it. Do you have any other bootable DVD/CD's you could try, just to rule out the possibility that it's your Windows DVD itself.
My System SpecsSystem Spec
30 Nov 2011   #10

xp 32bit, win 7 64bit

I have also tried my Win XP sp1 disc and it has the same trouble.

I thought there was something wrong when the "DVD" option did not appear in the one time boot list however, it does appear in the bios.
My System SpecsSystem Spec

 Help, switching from Ubuntu to win7

Thread Tools

Similar help and support threads
Thread Forum
BSOD, only when switching user Win7 x64
Hello all, My system has started BSOD'ing when switching users. Normally I log on as an admin, but I want to create accounts for my kids with much lower rights, obviously. The system has been stable for a few years, but now that I've created the kids accounts, I see BSOD frequently when switching...
BSOD Help and Support
Ubuntu + win7
Hi, I want Dual Boot Windows 7 Ultimate and Ubuntu. Any ideas how? I don't want to mess up my computer. Just with startup I want to choose Ubuntu or Windows 7. I heard when you use Wubi you have hibernate problems. Is that also in windows or can't you just hibernate in Ubuntu but you can in...
Installation & Setup
Installing UBUNTU in win7
I need to install ubuntu 9.10 for my project at college.I have win7 and win xp dual boot installed right now on my acer aspire 5738g laptop. ubuntu 9.10 has an option of installing on a separate drive using a bootable cd or it can be installed inside windows,from windows just like any other...
Installation & Setup
Mouse/keyboard freeze when switching back to Win7 (KVM)
Hi, I have one machine with Win7 x64 installed and one machine with Ubuntu x32. Using a Belkin Flip USB KVM switch to change between the 2. This was working until recently - now when I switch back to Win7 the mouse and keyboard freeze and the only solution is to reboot. I can switch back to...
Hardware & Devices
Dual Win7 & Ubuntu
I have the 32 bit Win7 & Ubuntu installed on one system with dual boot ... works fine and the menu appears correctly. I installed to a clean disk Win7 first and then Ubuntu second using the Ubuntu wubi installer. I also have another system with the 64 bit Win7 OS that I would like to put Ubuntu on...
Installation & Setup

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 16:13.
Twitter Facebook Google+