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Windows 7: Can I install 32-bit "over" 64-bit?

28 Oct 2009   #1
rusky

W7 Pro
 
 
Can I install 32-bit "over" 64-bit?

I originally posted this question on another thread but I didn't get a respons. I hope somebody can help me.

I've just bought a new computer with Win 7 Pro 64-bit installed. I have the OEM disk (64-bit).

I now find that W-7/Vista 64-bit drivers are not available for some of my hardware (in particular my Dell 2405FPW monitor and Philips Voip321 Dualphone). I want to "downgrade" to the 32-bit version.

I have a 32-bit disk available (OEM) and if I understand correctly from reading other posts my 64-bit Licence Key# can be used for either version. Is this correct?

My next question: can I install the 32-bit version "over" the 64-bit version or do I have to do another clean install and re-install all my other software, documents etc.?

One more question: if I change my mind again, and want to revert to the 64-bit version, can I reverse the process ... i.e. install the 64-bit version over the 32-bit version?

I'll be grateful for some expert advice.


My System SpecsSystem Spec
.
28 Oct 2009   #2
torrentg

7600.20510 x86
 
 

Simply, no. Clean install on each instance. Lose all settings and software installed each time. License good for both as I understand it.
My System SpecsSystem Spec
28 Oct 2009   #3
sup3rsprt

XP, Seven, 2008R2
 
 

You will need to do a clean install or custom install.

as far as an OEM key working for both versions, I'm not sure. My guess is probably so.
My System SpecsSystem Spec
.

28 Oct 2009   #4
MUff1N

Windows® 7 Ultimate x64 SP1
 
 

Quote   Quote: Originally Posted by rusky View Post
I originally posted this question on another thread but I didn't get a respons. I hope somebody can help me.

I've just bought a new computer with Win 7 Pro 64-bit installed. I have the OEM disk (64-bit).

I now find that W-7/Vista 64-bit drivers are not available for some of my hardware (in particular my Dell 2405FPW monitor and Philips Voip321 Dualphone). I want to "downgrade" to the 32-bit version.

I have a 32-bit disk available (OEM) and if I understand correctly from reading other posts my 64-bit Licence Key# can be used for either version. Is this correct?

My next question: can I install the 32-bit version "over" the 64-bit version or do I have to do another clean install and re-install all my other software, documents etc.?

One more question: if I change my mind again, and want to revert to the 64-bit version, can I reverse the process ... i.e. install the 64-bit version over the 32-bit version?

I'll be grateful for some expert advice.
If you have both x86 & x64 bit OS on your OEM disk then your license should be good for both x86 & x64 installed one at a time.

NO, you cannot install 32 bit over 64 bit or vise versa.

You will have to do a Clean Installation each time.

You can run 32 bit Software on W7 x64, but you can't run 32 bit device drivers on it.
Yea, it sucks...

32-bit and 64-bit Windows: frequently asked questions

http://windows.microsoft.com/en-US/w...sked-questions
My System SpecsSystem Spec
28 Oct 2009   #5
sup3rsprt

XP, Seven, 2008R2
 
 

Quote   Quote: Originally Posted by MUff1N View Post
Just install the 32 bit drivers for what needs it & keep the 64 bit OS installed!
64-bit OS needs 64-bit drivers.
My System SpecsSystem Spec
28 Oct 2009   #6
MUff1N

Windows® 7 Ultimate x64 SP1
 
 

Quote   Quote: Originally Posted by sup3rsprt View Post
Quote   Quote: Originally Posted by MUff1N View Post
Just install the 32 bit drivers for what needs it & keep the 64 bit OS installed!
64-bit OS needs 64-bit drivers.
I caught my mistake & edited my post above... I meant software...
But thanks for pointing that out as I might have missed it...
Still waking up & drinking Coffee...
My System SpecsSystem Spec
28 Oct 2009   #7
Dans

7 Home Premium
 
 

Correct me if I am wrong, but I believe once you have validated your genuine copy over the internet with MS, you will no longer be able to deinstall one bit version in order to reinstall the other bit version.
My System SpecsSystem Spec
28 Oct 2009   #8
sup3rsprt

XP, Seven, 2008R2
 
 

Quote   Quote: Originally Posted by Dans View Post
Correct me if I am wrong, but I believe once you have validated your genuine copy over the internet with MS, you will no longer be able to deinstall one bit version in order to reinstall the other bit version.
you can do it so long as you only use one version at a time. If you have any problems activating just call up Microsoft and explain the situation (activate by telephone).
My System SpecsSystem Spec
29 Oct 2009   #9
rusky

W7 Pro
 
 
Thank you

Thank you all for your input. Not the answer I was hoping for, but that's life. I'm going to bite the bullet and clean install the 32-bit version.
My System SpecsSystem Spec
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 Can I install 32-bit "over" 64-bit?




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