In the last few years, most computers have come preinstalled with at least 4GB of memory and one change that has to be made with that amount of RAM is you need to be running the right version of Windows to take advantage of it. By default, no version of Windows can make use of more than about 3GB of RAM unless it is the 64-bit edition of the operating system. There are third party hacks to force a 32-bit version of Windows to utilize more memory, but they are tricky to use and not completely reliable.
32-bit and 64-bit versions of Windows each have plus and minus points, 32-bit is better on memory usage, is less picky about unsigned drivers and also has better compatibility with older and certain types of software such as some security applications. A 64-bit Windows can use all the memory your computer has installed and also specific applications can further increase their speed under 64-bit via optimizations. There are valid reasons for you to want to upgrade your 32bit Windows 7 to 64-bit, and also downgrade from 64-bit down to 32-bit, it’s mostly about how you want to use your computer.
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Converting from one version to another is not difficult but it’s also not quite as simple as popping in your Windows DVD and pressing a button because you will need to reinstall all your software etc. Before starting anything, it’s a good idea to backup all important data. An easy way is to create a full Windows 7 image backup so that you can restore it in case anything goes wrong.
Alternatively there are plenty of quality alternatives such as Macrium Reflect. Also the Windows Easy Transfer tool can backup documents, emails, media files and favorites for quick restoration. Go to Start > All Programs > Accessories > System Tools to open Windows Easy Transfer and follow the instructions to create a backup.There are a couple of things you need to know about switching Windows versions between 32-bit and 64-bit. Firstly, you cannot reinstall a different edition of Windows to what you currently have installed. For example, if you are using Home Premium you need to reinstall Home Premium. Reinstalling to different hardware or another computer using this guide will deactivate Windows and you will need to reactivate manually from your COA sticker. Also, make sure your hardware has the appropriate drivers available, especially moving to 64-bit as there may be specific 64-bit drivers to download.
Unless you have a Windows 7 DVD from a retailer, you will need to either download and burn the correct edition ISO for your needs or remove the ei.cfg file from an ISO file you already have to create a universal edition of the Windows 7 installation disc. Fortunately we have covered how to download Windows 7 ISO images from an official source before. Once you have an ISO, it can be either burned to a DVD or written to a USB flash drive to make reinstall a bit quicker. For the more adventurous users and for sheer convenience there are also methods to create an all-in-one 32-bit and 64-bit install disc.
Here we will show you two different ways to reinstall your Windows 7 system. The first way works if you are going from a 64-bit Windows 7 to 32-bit because it can be done slightly differently. The second way is going from 32-bit to 64-bit.
Backing Up Windows Activation Data
Before migrating to a different architecture, backup your activation data so your system can be quickly reactivated without the needing the internet, a telephone or the product key from your COA sticker. There are two ways to do this:
Method #1
We have previously discussed a tool called ABR (Activation Backup and Restore) which is able to backup and restore the activation data from Windows Vista and Windows 7. This method can be used if you KNOW your Windows is pre-installed from the OEM manufacturer (like Dell, HP Asus) and has not been installed manually.
1. Download ABR Beta and run ABRbeta.exe, it will extract the files to a new ABR folder. Make sure now or after step #3 to copy the ABR folder to a USB flash drive or another partition so it’s available after reinstallation.
2. Run activation_backup.exe from the ABR folder and it will create two new files, backup-cert.xrm-ms and backup-key.txt in the ABR folder. Hit Enter to close ABR. The backed up product key is not the same as the key on your Windows COA sticker and is Manufacturer specific, which is normal.
Method #2
This second activation backup method is more universal because it doesn’t matter if you have an OEM pre-installed system, you activated over the internet or you had to use the telephone. There is also an added bonus that Office 2010/2013 activation data can be backed up as well. The tool is one we have talked about before and is called Advanced Tokens Manager.
1. Download Advanced Tokens Manager and extract the zip file. Make sure now or after step #3 to copy the extracted Advanced Tokens Manager folder to a USB flash drive or another hard drive so it’s available later on.
2. Run Advanced Tokens Manager.exe, click Activation Backup then read and accept the warning.
3. The window should now show that the backup was successful and is available to be restored. Two new files will have been created in a subfolder in the Advanced Tokens Manager folder called Config.ini and Tokens.Dat
On the next page we’ll show you how to switch from a 64-bit Windows 7 to 32-bit and also from 32-bit to 64-bit.
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How to Repair Windows 7, 8 or Vista Without the Install DVD10 Tools To Install Windows Faster Using a USB Flash DriveThanks so much, i used your second method to change my OS from 64bit to 32bit. Thanks and keep up the good work.
ReplyHey.. so i upgraded to windows 7 64 bit… As i start my computer i get two options… Both are named windows 7… One starts the 64 bit version and one starts the 32 bit version… Is there some way to get rid of the 32 bit version? Its not a memory problem but i dont like it
ReplyI will reinstall my win7 32bit but not converts into 64bit even my pc support 64bit length
ReplyHa i have literally no software on my pc. Backups? nah.
Great tutorial by the way :)
Replyhi,
will a downgrade to 32-bit win7 require re-install of all programs? the concern is that my OEM version of MS Office declared on the last installation that no more iterations of MS Office could be installed afterward.
Yes, a downgrade to 32-bit is a complete reinstall of Windows and all software, there is no other way around.
Replymy laptop came with windows 64 bits and change it to 32 bits.how can i go back to 64 bits?without any lost files
need help badly
worried boy
Ben
It depends what you mean by “files”. If you’re talking about files in folders like My Documents or Pictures etc, then you can reinstall Windows without formatting the drive and those files won’t be erased. Your program settings and software you have installed will be lost though.
For best results it would be preferable to backup all your data and then perform a clean install of Windows.
ReplyYou state: “Also the Windows Easy Transfer tool can backup documents, emails, media files and favorites for quick restoration. ”
It should be noted that Windows Easy Transfer tool will NOT allow you migrate files and settings from Win7 64-bit to Win7 32-bit. It DOES work very nicely for 32-bit to 64-bit migration, however.
Replythanks for the useful information.
But I cant downgrade my win7pro-64bit to win7pro-64bit.
My problem is, the Backed-up Activation couldn’t be used to restore the activation after Installing Win7pro-32bit.
I’m not sure with the reason, Is it because my win7pro-64bit DVD is OEM version and the Win7Pro-32bit ISO file is gotten some where on the internet?
But the Advanced tokens manager says that:
“The product can’t be activated by the backup. Please check the backup instructions on the readme file.”
While I did each steps carefully.
Any suggestion/Idea?
Replythanks for helping downloading
ReplyI did this process to “downgrade” a WIn7 64bit Home Premium to 32bit. After many hours of install, I am down to a clean Windows7 … still with 64bit. I never got the option to choose x86 or anything else that resembled 32bit. It cannot find the network card, nothing is in there now, just empty. Cannot even connect to the USB stick I have, with the registration information to re-activate.
Craters.
ReplyIf you’ve reinstalled 64bit, then you must have downloaded a 64bit install disk. Microsoft doesn’t give you the choice of what version (Home/Pro/Ultimate) or what architecture (32bit/64bit) on the official install DVDs.
Replythis information very very useful to me thank you very very much
Replywow!
Very helpful thanks!
Very saddened to hear the loss of your uncle-in-law, Please accept our condolences. God bless !
ReplyRay can i also go from 32bit to 64bit
ReplyWindows 8 32 Bit Iso Download
I am sorry for your uncle in law. May GOD rest his soul in heaven!
ReplyNeed free Windows 7 activation keys…………………………
ReplyXD: Why go for piracy when my desktop comes with a legit license?
ding-dong: Like I said, the desktop is meant for testing stuff and some security software such as Zemana cannot support x64 and some won’t even let me install. I too don’t see any difference between fully using a 4GB RAM and 3.25GB, hence the downgrade for 100% compatibility.
Replywhy downgrading to 32bit ray? because iam planning to upgrade mine to 64 bit.
kaspersky is working well as i know coz i saw it in my friends pc. 64 bit ediotn has two program file folders one is for x86 and one is for 64, so it means it is very straight that it is a backward compatible to any software out there.
ReplyWhy not use Windows Activation Remover or WAT? Seems easier than doing that.
ReplyLeave a Reply
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