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: Windows 7 reinstall from 64 bit to 32 bit

26 Apr 2011   #1

Windows 7 Profession 32 bit
Windows 7 reinstall from 64 bit to 32 bit

We purchased 2 new computers for work and they both contain Windows 64 bit. Our accounting program is not compatible with 64 bit. I have found a work-around but it isn't very stable (using Windows XP virtual mode).

So, my plan was to reinstall Windows 32 bit on the machine. The machine is an HP 505B Microtower. I have an official version of 32 bit Windows 7 Professional. I understand that the one on the HP is OEM, but I will cross that bridge when I come to it with the serial number (I did back up the activation certificates using the ABR Utility).

I downloaded the ISO from the Microsoft store, so it's an official Windows version. I created a bootable USB drive using DISKPART to clean and format the drive and using the bootsect.exe file from the mounted ISO to make it bootable. I then copy the entire contents of the mounted ISO to the flash drive. I have done this to install Windows 7 before and it has worked flawlessly.

Then when I boot from the flash drive on the HP, it gives me the "Install" screen and then it asks for CD/DVD drivers. I am assuming it really means the SATA drivers for the HD, because the DVD drive isn't even in use at this point. So, I go to the HP site and download the drivers for the storage devices. When I browse to that directory on the CD, Windows Install sees the driver and tries to install it, but still says that it cannot find any appropriate drivers.

I've read about possible reasons this error occurs. Some people have had bad burns from their ISO. Since mine is on a flash drive, it's not the burn. I have re-copied the files. I even re-downloaded the ISO and did the process all fresh just in case some random file was corrupted, still with the same error.

I can't seem to figure out why it won't let me get past the drivers point. I've never had to load drivers when installing Windows 7. All my other installs have gone flawelessly, even on machines that have come with OEM version of Windows.

Are there any ideas floating out there that could solve my problem?



My System SpecsSystem Spec
26 Apr 2011   #2

Windows 7 Profession 32 bit

Well, I have solved my own problem here. I had even tried this last week, but it must have been with a possibly corrupted ISO. I just tried this with the Windows 7 install flash drive I created on Friday.

I tried installing Windows 7 from within Windows 7 by running the setup. It worked this time. I had it download any updates it needed and then it did it's whole process and worked like a charm this time. It renamed the 64 bit Windows directory to "Windows.old". During Windows' initial setup, I went ahead and skipped the "Activate Windows" and did not put in the key. I used the ABR restore utility and it loaded my activation from the previous Windows that was installed (all legal).

So in case anyone was trying to do this, this was my method. Hope it helps someone else.
My System SpecsSystem Spec
26 Apr 2011   #3
Microsoft MVP


The method to create a USB installer which always works for me is Ultra ISO trial version: Open ISO on file tab, Write Disk Image on Bootable tab, Format, Write.

You will have to boot the installer to change to 32 bit, as it cannot be installed from within 64 bit OS.

Are you sure you now have 32 bit? Check Computer>Properties.
My System SpecsSystem Spec


 Windows 7 reinstall from 64 bit to 32 bit

Thread Tools

Similar help and support threads
Thread Forum
IE10, IE11 will NOT reinstall into Win7 after op/sys reinstall/repair
Recently I had to *reinstall* the op/sys. Something got into my user profile documents & corrupted the files including the network ability to connect to the internet. Not wanting to dump the op/sys I chose the route of using the install disc to *overwrite* the current system to correct the...
Browsers & Mail
Erased hard drive to reinstall Win 7 but now won't reinstall
I wanted to convert my Sony Vaio back to Windows 7 after updating to Windows 8 last year. I tried using the recovery disks that I created when I got the laptop. It told me that I couldn't reinstall. So after trying multiple things, I finally decided to wipe out the entire hard drive thinking...
Installation & Setup
Uninstall to reinstall or just reinstall cs5 premiere pro
error message :m2ts AVCHD suddenly giving unsupported compression error I have just had this happen to me Video files I have opened previously in Premiere Pro cs5 are now giving me this damn error message. I really am coming to hate this program. Big talk low on performance. So what should I...
I just have to Reinstall Windows
And I end up with all this Icon (View Image) How can I delete them, Can any body help me please? I just have to uninstall all software Microsoft use to reinstall software, and I and up with all this use less utilities. Thank you.
Browsers & Mail
Windows 7 reinstall
Hello everybody i just reinstalled my windows 7 professional laptop and it did it sucsfully and then when i went to my memory it said 54.2 out of 86.9 gb's left and when i first brought the laptop it came with 160gb and this is really annoying:mad: how did it reduce my laptop from being a 160gb...
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 01:29.
Twitter Facebook Google+