Two OEM licence keys (different Windows versions) on one PC

Chryonn · Apr 17, 2017

Hello,
I'm in the process of building another PC and I want to know if it's possible for two versions of Windows to reside next to each other legitimately. I would have windows 7 and 10 as a dual-boot system. So if I buy OEM keys and activate them would one de-activate the other? I know that OEM licence keys are bound to the mobo and are irrevocable. Any advice is greatly appreciated. Thank you.

Kursah · Apr 17, 2017

Both should be fine if you're using different keys to activate them. If you used your Windows 7 key for say the free 10 upgrade, you'd run into problems.

https://www.howtogeek.com/197647/how-to-dual-boot-windows-10-with-windows-7-or-8/

:toast:

Jetster · Apr 17, 2017

It will work just fine, buy why?

If you did the free upgrade to 10 you can revert back to 7 with no problem

NdMk2o1o · Apr 17, 2017

Jetster said:
It will work just fine, buy why?

If you did the free upgrade to 10 you can revert back to 7 with no problem

Never dual-booted?

Jetster · Apr 17, 2017

Sure with Windows /Linux

jboydgolfer · Apr 17, 2017

Windows 10 has a native boot screen for running dual boot OS. Recently I've run windows 10 alongside windows seven. I found it less convenient using the windows 10 boot screen switch because it actually has to start ,post ,load windows 10 ,then if you choose Windows 7 it restarts the PC entirely into Windows 7 ,but if you choose windows 10 you're already halfway there.but regardless it does work just fine as long as you have two separate keys

Chryonn · Apr 18, 2017

Hi, thanks for the informative replies. I missed the boat on the free Win 10 upgrade but I've heard that you only get 30 days grace period before it stays Win 10 and you cannot go back. I've dual booted Oses before (Win98 and XP, Win 7 and Win 10) without activation so I'm familiar with the process I just wanted to know if the newest OS key would de-activate the older OS key or if I would run into any potential problems down the road, and like jboydgolfer says it restarts your PC if you have both 7 and 10 installed and you want just 7 running.

System Name	Le Don
Processor	Core i 5 2500K Unlocked 3.3GHz HD Graphics 3000
Motherboard	Asus P8P67 Pro B3 Revision Rev 3.1
Cooling	Arctic Freezer Pro 7 Rev.2
Memory	8Gb Corsair DDR3 (CMZ8GX3M2B1600C9), 1600MHz, 1.5V, 9-9-9-24
Video Card(s)	EVGA Signature 2 Super Clocked GTX680 2GB
Storage	Total 6 TB storage
Display(s)	LG 23" D2342P and LG 42" 42LF65 LCD (Wall mounted)
Case	Antec P180 Silver
Audio Device(s)	Audigy 2 ZS Platinum Pro
Power Supply	Corsair 850HX
Software	Windows 7 Ultimate 64-bit,

System Name	Kursah's Gaming Rig 2018 (2022 Upgrade) - Ryzen+ Edition \| Gaming Laptop (Lenovo Legion 5i Pro 2022)
Processor	R7 5800X @ Stock \| i7 12700H @ Stock
Motherboard	Asus ROG Strix X370-F Gaming BIOS 6203\| Legion 5i Pro NM-E231
Cooling	Noctua NH-U14S Push-Pull + NT-H1 \| Stock Cooling
Memory	TEAMGROUP T-Force Vulcan Z 32GB (2x16) DDR4 4000 @ 3600 18-20-20-42 1.35v \| 32GB DDR5 4800 (2x16)
Video Card(s)	Palit GeForce RTX 4070 JetStream 12GB \| CPU-based Intel Iris XE + RTX 3070 8GB 150W
Storage	4TB SP UD90 NVME, 960GB SATA SSD, 2TB HDD \| 1TB Samsung OEM NVME SSD + 4TB Crucial P3 Plus NVME SSD
Display(s)	Acer 28" 4K VG280K x2 \| 16" 2560x1600 built-in
Case	Corsair 600C - Stock Fans on Low \| Stock Metal/Plastic
Audio Device(s)	Aune T1 mk1 > AKG K553 Pro + JVC HA-RX 700 (Equalizer APO + PeaceUI) \| Bluetooth Earbuds (BX29)
Power Supply	EVGA 750G2 Modular + APC Back-UPS Pro 1500 \| 300W OEM (heavy use) or Lenovo Legion C135W GAN (light)
Mouse	Logitech G502 \| Logitech M330
Keyboard	HyperX Alloy Core RGB \| Built in Keyboard (Lenovo laptop KB FTW)
Software	Windows 11 Pro x64 \| Windows 11 Home x64

System Name	Juliette // My HTPC
Processor	Intel i7 9700K // AMD Ryzen 5 5600G
Motherboard	ASUS Prime Z390X-A // ASRock B550 ITX-AC
Cooling	Noctua NH-U12 Black // Stock
Memory	Corsair DDR4 3600 32gb //G.SKILL Trident Z Royal Series 16GB (2 x 8GB) 3600
Video Card(s)	ASUS RTX4070 OC// ASUS RTX 4060 OC
Storage	Samsung 970 EVO NVMe 1Tb, Intel 665p Series M.2 2280 1TB // Samsung 1Tb SSD
Display(s)	ASUS VP348QGL 34" Quad HD 3440 x 1440 // 55" LG 4K SK8000 Series
Case	Seasonic SYNCRO Q7// Silverstone Granada GD05
Audio Device(s)	Focusrite Scarlett 4i4 // HDMI to Samsung HW-R650 sound bar
Power Supply	Seasonic SYNCRO 750 W // CORSAIR Vengeance 650M
Mouse	G903 and a Master Mouse MM710/No mouse, MS game copntroller
Keyboard	EVGA / Logitech K400
Software	Windows 11 Pro // Windows 10 Pro

System Name	Ryzen Reynolds
Processor	Ryzen 1600 - 4.0Ghz 1.415v - SMT disabled
Motherboard	mATX Asrock AB350m AM4
Cooling	Raijintek Leto Pro
Memory	Vulcan T-Force 16GB DDR4 3000 16.18.18 @3200Mhz 14.17.17
Video Card(s)	Sapphire Nitro+ 4GB RX 580 - 1450/2000 BIOS mod 8-)
Storage	Seagate B'cuda 1TB/Sandisk 128GB SSD
Display(s)	Acer ED242QR 75hz Freesync
Case	Corsair Carbide Series SPEC-01
Audio Device(s)	Onboard
Power Supply	Corsair VS 550w
Mouse	Zalman ZM-M401R
Keyboard	Razor Lycosa
Software	Windows 10 x64
Benchmark Scores	https://www.3dmark.com/spy/6220813

System Name	Juliette // My HTPC
Processor	Intel i7 9700K // AMD Ryzen 5 5600G
Motherboard	ASUS Prime Z390X-A // ASRock B550 ITX-AC
Cooling	Noctua NH-U12 Black // Stock
Memory	Corsair DDR4 3600 32gb //G.SKILL Trident Z Royal Series 16GB (2 x 8GB) 3600
Video Card(s)	ASUS RTX4070 OC// ASUS RTX 4060 OC
Storage	Samsung 970 EVO NVMe 1Tb, Intel 665p Series M.2 2280 1TB // Samsung 1Tb SSD
Display(s)	ASUS VP348QGL 34" Quad HD 3440 x 1440 // 55" LG 4K SK8000 Series
Case	Seasonic SYNCRO Q7// Silverstone Granada GD05
Audio Device(s)	Focusrite Scarlett 4i4 // HDMI to Samsung HW-R650 sound bar
Power Supply	Seasonic SYNCRO 750 W // CORSAIR Vengeance 650M
Mouse	G903 and a Master Mouse MM710/No mouse, MS game copntroller
Keyboard	EVGA / Logitech K400
Software	Windows 11 Pro // Windows 10 Pro

System Name	Americas cure is the death of Social Justice & Political Correctness
Processor	i7-11700K
Motherboard	Asrock Z590 Extreme wifi 6E
Cooling	Noctua NH-U12A
Memory	32GB Corsair RGB fancy boi 5000
Video Card(s)	RTX 3090 Reference
Storage	Samsung 970 Evo 1Tb + Samsung 970 Evo 500Gb
Display(s)	Dell - 27" LED QHD G-SYNC x2
Case	Fractal Design Meshify-C
Audio Device(s)	on board
Power Supply	Seasonic Focus+ Gold 1000 Watt
Mouse	Logitech G502 spectrum
Keyboard	AZIO MGK-1 RGB (Kaith Blue)
Software	Win 10 Professional 64 bit
Benchmark Scores	the MLGeesiest

Two OEM licence keys (different Windows versions) on one PC

Chryonn

Kursah

Super Moderator

Jetster

NdMk2o1o

Jetster

jboydgolfer

Chryonn