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

rusky

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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 Computer My Computer

OS
W7 Pro
Simply, no. Clean install on each instance. Lose all settings and software installed each time. License good for both as I understand it.
 

My Computer My Computer

Computer Manufacturer/Model Number
self built
OS
7600.20510 x86
CPU
P4 550 3.4 GHz HT running at 3.5 GHz
Motherboard
MSI PM8M3-V (MS-7211 v1.x) Micro-ATX mainboard
Memory
OCZ 2 GB(2x1GB) DDR400mHz running @ 414 mHz
Graphics Card(s)
HIS Radeon HD 3850 IceQ 3 Turbo HDMI Dual DL-DVI AGP
Sound Card
MOTU Traveler firewire studio interface 192 kHz 24 bit
Monitor(s) Displays
22" widescreen Acer X223W LCD, 17" Compaq P75 CRT
Screen Resolution
1680x1050 and 1280x1024
Hard Drives
SATA I x2 WD, 400 GB and 120 GB, SATA 2 WD Caviar Black 1 TB
PSU
350W generic
Case
Cybertronpc, it glows blue
Cooling
stock cpu fan, Ice-Q 3 gpu and system, many case fans
Keyboard
Logitch Classical Keyboard 200
Mouse
Logitech Mediaplay cordless
Internet Speed
1792/448 kbits/sec
Other Info
SATA II PCI fake RAID adapter, 1 GB Readyboost, original ATI Remote Wonder (even works with WMC perfectly), Logitech Rumblepad 2 game controller x2
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 Computer My Computer

Computer Manufacturer/Model Number
Too many to list.
OS
XP, Seven, 2008R2
CPU
AMD, Intel, VIA
Motherboard
Various
Memory
Corsair, Kingston, etc.
Graphics Card(s)
ATI, NVIDIA
Monitor(s) Displays
Samsung
Hard Drives
Maxtor, Western Digital
Keyboard
qwerty
Internet Speed
22 Mb/s @ home, 1 Gb/s @ server
Other Info
All of my systems still run fastest on XP 32-bit for the most part. Win7 is fun to play with, but I still prefer XP for raw speed, security, and functionality.
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/...and-64-bit-Windows-frequently-asked-questions
 

My Computer My Computer

Computer Manufacturer/Model Number
ABS Tech Ultimate X9
OS
Windows® 7 Ultimate x64 SP1
CPU
Intel Core 2 Duo E8400 (E0) @ 4.0GHz
Motherboard
ASUS P5Q Pro Turbo / 1780 FSB
Memory
G.SKILL-F2-8500CL5D-4GBPK (2x2Gbs) (5-5-5-15) @ 1067Mhz
Graphics Card(s)
EVGA GTX 470 SC (845/1690/2000) 160Gbs
Sound Card
VIA HD Audio / Boston Acoustics
Monitor(s) Displays
Acer X222W HD 22" LCD 2500:1 / 5ms
Screen Resolution
1680x1050
Hard Drives
Seagate Barracuda SATAII 2 x 320GB
Seagate Barracuda SATAII 1Tb
Intel® Rapid Storage Technology v10.1.0.1008
AHCI-NCQ Enabled
PSU
Silent Pro GOLD 80 PLUS 800w /95% efficiency / SLI-Crossfire
Case
ABS Stealth Black-Custom
Cooling
CoolerMaster V6GT 6 Heatpipe 200w CPU Cooler
Keyboard
Logitech G15 Gaming Keyboard (Old Style Blue!)
Mouse
Logitech MX518 Gaming Mouse
Internet Speed
1Mbs-up/ 6Mbs-down
Just install the 32 bit drivers for what needs it & keep the 64 bit OS installed! :D

64-bit OS needs 64-bit drivers.
 

My Computer My Computer

Computer Manufacturer/Model Number
Too many to list.
OS
XP, Seven, 2008R2
CPU
AMD, Intel, VIA
Motherboard
Various
Memory
Corsair, Kingston, etc.
Graphics Card(s)
ATI, NVIDIA
Monitor(s) Displays
Samsung
Hard Drives
Maxtor, Western Digital
Keyboard
qwerty
Internet Speed
22 Mb/s @ home, 1 Gb/s @ server
Other Info
All of my systems still run fastest on XP 32-bit for the most part. Win7 is fun to play with, but I still prefer XP for raw speed, security, and functionality.
Just install the 32 bit drivers for what needs it & keep the 64 bit OS installed! :D

64-bit OS needs 64-bit drivers.

I caught my mistake & edited my post above... I meant software... :sarc:
But thanks for pointing that out as I might have missed it...
Still waking up & drinking Coffee...
 

My Computer My Computer

Computer Manufacturer/Model Number
ABS Tech Ultimate X9
OS
Windows® 7 Ultimate x64 SP1
CPU
Intel Core 2 Duo E8400 (E0) @ 4.0GHz
Motherboard
ASUS P5Q Pro Turbo / 1780 FSB
Memory
G.SKILL-F2-8500CL5D-4GBPK (2x2Gbs) (5-5-5-15) @ 1067Mhz
Graphics Card(s)
EVGA GTX 470 SC (845/1690/2000) 160Gbs
Sound Card
VIA HD Audio / Boston Acoustics
Monitor(s) Displays
Acer X222W HD 22" LCD 2500:1 / 5ms
Screen Resolution
1680x1050
Hard Drives
Seagate Barracuda SATAII 2 x 320GB
Seagate Barracuda SATAII 1Tb
Intel® Rapid Storage Technology v10.1.0.1008
AHCI-NCQ Enabled
PSU
Silent Pro GOLD 80 PLUS 800w /95% efficiency / SLI-Crossfire
Case
ABS Stealth Black-Custom
Cooling
CoolerMaster V6GT 6 Heatpipe 200w CPU Cooler
Keyboard
Logitech G15 Gaming Keyboard (Old Style Blue!)
Mouse
Logitech MX518 Gaming Mouse
Internet Speed
1Mbs-up/ 6Mbs-down
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 Computer My Computer

OS
7 Home Premium
CPU
AMD 64 x 2
Motherboard
K9 Ultra (AMD)
Memory
4 GB
Graphics Card(s)
ATI RADON 1600
Sound Card
Creative Soundblaster Xi Fi
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 Computer My Computer

Computer Manufacturer/Model Number
Too many to list.
OS
XP, Seven, 2008R2
CPU
AMD, Intel, VIA
Motherboard
Various
Memory
Corsair, Kingston, etc.
Graphics Card(s)
ATI, NVIDIA
Monitor(s) Displays
Samsung
Hard Drives
Maxtor, Western Digital
Keyboard
qwerty
Internet Speed
22 Mb/s @ home, 1 Gb/s @ server
Other Info
All of my systems still run fastest on XP 32-bit for the most part. Win7 is fun to play with, but I still prefer XP for raw speed, security, and functionality.
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 Computer My Computer

OS
W7 Pro
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