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Windows 7: How to upgrade windows 7 ultimate 32 bit to 64 bit

27 Dec 2014   #1
lastyear

Windows 7 Ultimate x64
 
 
How to upgrade windows 7 ultimate 32 bit to 64 bit

i want to upgrade windows 7 ultimate 32 bit to 64 bit for gaming coz the system requirements for the great gaming is only using 64 bit, but i can't solve it. i have already installed windows 7 ultimate 64 bit ISO but after i clicked the setup.exe, the box appeared and it was written "the version of this files is not compatible with the version of windows you're running. Check your computer system to see whether you need an x86 (32 bit) or x64 (64 bit) version of the program, and then contact the software publisher." I have no choice but to post this. please answer ASAP. your answer will be very welcome


My System SpecsSystem Spec
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27 Dec 2014   #2
Kari

Microsoft Community Contributor Award Recipient

 

You cannot upgrade from one bit version to another (32 bit to 64 bit or vice versa). A clean install is the only possibility.

Backup your personal files, wipe the hard disk empty, boot computer with 64 bit install media and install it, then reinstall all your software.

See this tutorial for instructions in creating a Windows install media from your ISO file: Windows 7 USB/DVD Download Tool.
My System SpecsSystem Spec
27 Dec 2014   #3
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

My System SpecsSystem Spec
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27 Dec 2014   #4
LMiller7

Windows 7 Pro 64 bit
 
 

Comparing the GUI of 32 bit and 64 bit systems, or even looking at the files with Windows explorer, one might reasonably conclude that the differences were relatively minor and an upgrade no big deal. A reasonable conclusion, but very wrong. Internally 32 bit and 64 bit systems are very different. Most of the system files are different, and different in very significant ways. It could not be otherwise. Microsoft concluded that an in place upgrade from a 32 bit to 64 bit OS would not be practical and made no provision for it. A 64 bit OS can run most 32 bit applications but only because a complex subsystem was created to make this possible.

A clean install is the only option.
My System SpecsSystem Spec
27 Dec 2014   #5
gregrocker

 

The ISO and everything else needed to get and keep a perfect Clean Reinstall - Factory OEM Windows 7
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28 Dec 2014   #6
lastyear

Windows 7 Ultimate x64
 
 

thanks for the answers all. but which one should i do the clean install windows? windows 32 bit or 64 bit?
My System SpecsSystem Spec
28 Dec 2014   #7
gregrocker

 

If you intend to keep 3gb RAM then I would use 32 bit. If you plan to upgrade to 4gb RAM or more then I'd install 64 bit.
My System SpecsSystem Spec
28 Dec 2014   #8
lastyear

Windows 7 Ultimate x64
 
 

i'm currently use 32 bit, but i want to use 64 bit. it means i do the clean install on 32 bit right? and then i will create a Windows install media from my ISO file with USB...
My System SpecsSystem Spec
28 Dec 2014   #9
Kari

Microsoft Community Contributor Award Recipient

 

Quote   Quote: Originally Posted by lastyear View Post
thanks for the answers all. but which one should i do the clean install windows? windows 32 bit or 64 bit?
Of course the 64 bit.

You have now a 32 bit Windows and judging by the fact that you did not mention a single issue with it you can continue using it without reinstalling as before. However, as for the reason for getting a 64 bit Windows you told this:
Quote   Quote: Originally Posted by lastyear View Post
i want to upgrade windows 7 ultimate 32 bit to 64 bit for gaming coz the system requirements for the great gaming is only using 64 bit, but i can't solve it.
If this, gaming requiring 64 bit is in your opinion really a valid reason to start using a 64 bit Windows and you really want to do it, then you should perform a clean install of a 64 bit Windows.

Short:
  • If you are happy with 32 bit Windows 7 there's no need to reinstall.
  • If you need to / want to a 64 bit Windows 7 you must perform a clean install.

Kari
My System SpecsSystem Spec
28 Dec 2014   #10
gregrocker

 

Quote   Quote: Originally Posted by lastyear View Post
i'm currently use 32 bit, but i want to use 64 bit. it means i do the clean install on 32 bit right? and then i will create a Windows install media from my ISO file with USB...
You are missing that this decision is based on the amount of RAM you have or plan to add. Under 4gb RAM i would use 32 bit for best performance, over 4gb RAM then use 64 bit.

If your goal is to install 64 bit then I would upgrade my ram.
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