How to change windows 7 64 bit os to 32 bit?

Solution
Format your hard disk and buy a genuine copy of Windows 7 32bit and install it. You will lose some of the power of your RAM (memory) and I cannot think of any good reason for doing it.

carolinebennett

Reputable
Oct 15, 2015
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4,560
The only way to switch from 64-bit Windows 7 to 32-bit is full reinstallation of 32-bit Windows. Besides, it will require retail license because previous OEM license key will be invalid for 32-bit OS.
 

ChaoticWolf

Honorable
You can't just simply change it automatically. You'll need to reinstall Windows with a copy of the 32-bit os. You will also lose all your files. But you can back them up on another device like an external hdd/sdd
I don't really see the point in changing from 64-bit to 32-bit unless there's an application that you really need that doesn't support 64.
64 bit operating systems use the full amount of ram, while 32 bit doesn't.
For example, if I had 4GB of ram, it would likely only use 2 gb of ram.
Performance and speeds are also lower than 64-bit.
With 64 bit, more things are supported, and there are more speeds.
I upgraded from 32-bit to 64 bit not too long ago and I really do notice the difference.
 

Cas_tee

Commendable
Jun 18, 2016
5
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1,510



How did you upgrade from 32 bit to 64 bit?

 
He probably owns a genuine licenced Microsoft box of two DVDs - one 32 bit and the other 64. You make your choice on installation but you are entitled to change your mind - once.

If your PC or laptop came with an installation, you probably won't have the option to change. That choice needs to be made in the shop.
 

Cas_tee

Commendable
Jun 18, 2016
5
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1,510



I bought a pre-buit PC with windows 7 ultimate 32 bit. I have no disk or anything like that. So i have to buy another key to install 64 bit?

 

Cas_tee

Commendable
Jun 18, 2016
5
0
1,510




Im just gonna buy a Windows 7 key off kinguin.com