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: Dual Booting 32bit and 64bit is it possible?

22 Apr 2010   #1

Windows 7
Dual Booting 32bit and 64bit is it possible?

I have a Dell Inspiron 1720 with Windows 7 32 bit Premium installed.
can someone instruct me how to now add 64bit Ultimate as a dual boot, I have just bought win7 ultimate.
Thanks for your time

My System SpecsSystem Spec
22 Apr 2010   #2
PooMan UK

Windows 7 Ultimate 64bit

Hi and welcome to the forums.
Excuse me for my ignorance but why would you want or need the ability to dual boot the same OS with just 32/64 bit being the difference. Surely the disc space saved alone by installing only 1 version would be of more value and a lot less hassle ??
Soz I'm just curious
My System SpecsSystem Spec
22 Apr 2010   #3

Windows 7

I want to try some of my programs with 64bit before I commit to one or the other.
My System SpecsSystem Spec

22 Apr 2010   #4


Shrink your existing Windows to make enough space for a 64 bit trial partition, or use a second HD.

Boot the 64 bit DVD, select Custom install, then use Drive Tools to create partition and format before installing to new partition.

You can choose not to input Product Key at install and uncheck Automatically Activate to try 64 bit for 30 days before deciding to keep it, or activate it now since you can always delete it and use 32 bit if you want.
My System SpecsSystem Spec
23 Apr 2010   #5

Windows 7

Thanks for the good advice here.
I have got the partition ready but the windows disk won't boot from my dvd drive.
I forgot to mention earlier that I had a dual boot with 32 bit Premium and 32 bit Ultimate, I removed the 32 bit install by formating the partition it was installed on and deleting the menu entry in boot menu in msconfig.
My System SpecsSystem Spec
23 Apr 2010   #6


Do you have the latest BIOS version update? Check your computer or mobo model Support Downloads page to check for newer to install from Windows.

Are you booting the DVD correctly? Boot from CD - How to Boot your Computer from a Bootable CD or DVD - Boot to CD

Try removing all but 2gb of memory for install. Test your memory using Windows Memory Diagnostics for at least 2 passes.

Did you successfully boot to install your existing 32 bit OS? What is the exact fail point while booting DVD?
My System SpecsSystem Spec

 Dual Booting 32bit and 64bit is it possible?

Thread Tools

Similar help and support threads
Thread Forum
Dual booting 32bit and 64bit system?
I recently got a game that only run in a 64 bit system and my PC is running on Windows 7 ultimate (32 bit). In order to run the game, I want to make another partition and install 64 bits windows 7 ultimate. From what I understand, since my PC only has 2GB of RAM, it run faster on a 32bit system....
Installation & Setup
BSOD when dual booting Windows Vista 32bit and Windows 7 64bit
Hello, I have another laptop and its a HP 2230s. I originally installed Windows 7 professional 64bit. But I have swapped the ram into my Lenovo ThinkPad. So the HP now has 2GB. I created a new partition and installed Vista Business 32bit on it. When I started the install windows .exe program in...
BSOD Help and Support
trying to dual boot 7 64bit and xp 32bit
Hey guys I am trying to dual boot 7 64bit and xp 32bit I have 7 up and running on a 90gb ssd and I have two 500gb WD drives in RAID 0 where I am wanting to create a 60gb partition to run xp. I have setup my raid array in bios but for some reason the boot option is grayed out. I installed xp...
Installation & Setup
32bit 64bit dual boot up
Is it possible to have dual (or triple) bootup with a 32bit Win 7 on one side and a 64bit Win 7 on the other? I have dual boot with XP and 32bit Win 7 but will be upgrading to 64bit. Many thanks in advance... Peter
Installation & Setup
Dual Booting 32bit and 64bit on same computer
Is it possible to dual boot a 32bit and 64bit system on the same computer?
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 13:16.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App