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Solved My product key doesn't work


eirikff

New Member
Posts
7
#1
Hi!

I've bought Windows 8 when it was first released, but reinstalled Windows 7 again. Now I want to install Windows 8.1, but I get an error saying my product key is invalid. I've tried multiple product keys (We own multiple computers, two of which have Win8 installed), but I get the same error with all of them.

Does anyone know how I can fix this?

Thanks! :)

Edit: Because none of my product keys don't work, I can't install Windows 8 to further install Windows 8.1.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    CPU
    Intel i5 3570K
    Motherboard
    Gigabyte Z77-DS3H
    Memory
    Corsair Vengeance DDR3 1600MHz 8GB
    Graphics Card(s)
    Gainward GeForce GTX 660Ti 2GB
    Monitor(s) Displays
    BenQ 24" LED XL2420T
    Screen Resolution
    1920x1080
    Hard Drives
    Western Digital® Desktop Black 1TB
    OCZ SSD Agility 3 Series 2.5" 240GB
    PSU
    Silver Power SP-S650 650W
    Cooling
    Stock cooler
    Keyboard
    SteelSeries 6G v2 - Nordic Layout
    Mouse
    Razer Deathadder
    Browser
    Google Chrome

eirikff

New Member
Posts
7
#3

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    CPU
    Intel i5 3570K
    Motherboard
    Gigabyte Z77-DS3H
    Memory
    Corsair Vengeance DDR3 1600MHz 8GB
    Graphics Card(s)
    Gainward GeForce GTX 660Ti 2GB
    Monitor(s) Displays
    BenQ 24" LED XL2420T
    Screen Resolution
    1920x1080
    Hard Drives
    Western Digital® Desktop Black 1TB
    OCZ SSD Agility 3 Series 2.5" 240GB
    PSU
    Silver Power SP-S650 650W
    Cooling
    Stock cooler
    Keyboard
    SteelSeries 6G v2 - Nordic Layout
    Mouse
    Razer Deathadder
    Browser
    Google Chrome

eirikff

New Member
Posts
7
#5
It won't work, at least when you start a clean install !
What won't work? Installing Windows 8.1 from Windows 7?
Learn some English.
Win8 product key will NOT work to install Win8.1 from scratch(clean install from boot media like USB or DVD).
Sorry for misunderstanding, I'm not native English.

So in order to install Windows 8.1, I'll have to first install Win8, then upgrade to Win8.1?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    CPU
    Intel i5 3570K
    Motherboard
    Gigabyte Z77-DS3H
    Memory
    Corsair Vengeance DDR3 1600MHz 8GB
    Graphics Card(s)
    Gainward GeForce GTX 660Ti 2GB
    Monitor(s) Displays
    BenQ 24" LED XL2420T
    Screen Resolution
    1920x1080
    Hard Drives
    Western Digital® Desktop Black 1TB
    OCZ SSD Agility 3 Series 2.5" 240GB
    PSU
    Silver Power SP-S650 650W
    Cooling
    Stock cooler
    Keyboard
    SteelSeries 6G v2 - Nordic Layout
    Mouse
    Razer Deathadder
    Browser
    Google Chrome

alphanumeric

slightly off center
VIP Member
Guru
Gold Member
#6
If they are upgrade keys and you are trying to clean install 8.0 try this, http://www.eightforums.com/tutorials/13375-clean-install-windows-8-upgrade.html?filter
If you are trying to clean install 8.1, it will not accept a Windows 8.0 key for installation. You have to use a Windows 8.1 key to do the install. There are leaked install keys that will let you do that. They let you install but will not activate. Once its installed though, you can use a Windows 8 key to activate. Windows 8 upgrade keys may not work though.
 

My Computer

System One

  • OS
    Windows 10 Education 64 Bit
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Asus
    CPU
    AMD Phenom II X4 980 Black Edition Deneb 3.7GHz
    Motherboard
    ASUS M4N68T-M V2 µATX Motherboard
    Memory
    8GB 4GBx2 Kingston PC10600 DDR3 1333 Memory
    Graphics Card(s)
    NVIDIA Geforce GT640 2 Gig DDR3 PCIe
    Sound Card
    VIA VT1708s High Definition Audio 8-channel Onboard
    Monitor(s) Displays
    22" LG E2242 1080p and 2 19" I-INC AG191D
    Screen Resolution
    1280x1024 - 1920x1080 - 1280x1024
    Hard Drives
    Crucial MX100 256 GB SSD and 500 GB WD Blue SATA
    PSU
    Thermaltake TR 620
    Case
    Power Up Black ATX Mid-Tower Case
    Cooling
    Stock heatsink fan
    Keyboard
    Logitech Wireless K350 Wave
    Mouse
    Logitech M570 Trackball and T650 TouchPad
    Internet Speed
    80 Mbps Down 30 Mbps Up
    Browser
    Internet Explorer 11
    Antivirus
    Windows Defender
    Other Info
    HP DVD1040e Lightscribe - External USB2

mahanddeem

Member
Member
Posts
19
#7
What won't work? Installing Windows 8.1 from Windows 7?
Learn some English.
Win8 product key will NOT work to install Win8.1 from scratch(clean install from boot media like USB or DVD).
Sorry for misunderstanding, I'm not native English.

So in order to install Windows 8.1, I'll have to first install Win8, then upgrade to Win8.1?
YES, unfortunately !
You have to install 8, then from 8 you upgrade to 8.1, which is stupid if you ask me !
 

My Computer

System One

  • OS
    windows 8

mahanddeem

Member
Member
Posts
19
#8
If they are upgrade keys and you are trying to clean install 8.0 try this, http://www.eightforums.com/tutorials/13375-clean-install-windows-8-upgrade.html?filter
If you are trying to clean install 8.1, it will not accept a Windows 8.0 key for installation. You have to use a Windows 8.1 key to do the install. There are leaked install keys that will let you do that. They let you install but will not activate. Once its installed though, you can use a Windows 8 key to activate. Windows 8 upgrade keys may not work though.
It would be great to share those "leaked keys".

Of course everybody knows they will not activate, but just to help overcome the first install obstacle. I can't see any piracy here.
 

My Computer

System One

  • OS
    windows 8

eirikff

New Member
Posts
7
#9
If they are upgrade keys and you are trying to clean install 8.0 try this, http://www.eightforums.com/tutorials/13375-clean-install-windows-8-upgrade.html?filter
If you are trying to clean install 8.1, it will not accept a Windows 8.0 key for installation. You have to use a Windows 8.1 key to do the install. There are leaked install keys that will let you do that. They let you install but will not activate. Once its installed though, you can use a Windows 8 key to activate. Windows 8 upgrade keys may not work though.
Thank you, this solved it! I downloaded the "Install Windows 8" from Windows' website.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    CPU
    Intel i5 3570K
    Motherboard
    Gigabyte Z77-DS3H
    Memory
    Corsair Vengeance DDR3 1600MHz 8GB
    Graphics Card(s)
    Gainward GeForce GTX 660Ti 2GB
    Monitor(s) Displays
    BenQ 24" LED XL2420T
    Screen Resolution
    1920x1080
    Hard Drives
    Western Digital® Desktop Black 1TB
    OCZ SSD Agility 3 Series 2.5" 240GB
    PSU
    Silver Power SP-S650 650W
    Cooling
    Stock cooler
    Keyboard
    SteelSeries 6G v2 - Nordic Layout
    Mouse
    Razer Deathadder
    Browser
    Google Chrome

alphanumeric

slightly off center
VIP Member
Guru
Gold Member
#10
The leaked keys were posted in a thread here a while ago. I can't find it now, it had to do with the RTM ISO's being leaked to the internet. It looks like you solved your problem anyway. :thumb:
 

My Computer

System One

  • OS
    Windows 10 Education 64 Bit
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Asus
    CPU
    AMD Phenom II X4 980 Black Edition Deneb 3.7GHz
    Motherboard
    ASUS M4N68T-M V2 µATX Motherboard
    Memory
    8GB 4GBx2 Kingston PC10600 DDR3 1333 Memory
    Graphics Card(s)
    NVIDIA Geforce GT640 2 Gig DDR3 PCIe
    Sound Card
    VIA VT1708s High Definition Audio 8-channel Onboard
    Monitor(s) Displays
    22" LG E2242 1080p and 2 19" I-INC AG191D
    Screen Resolution
    1280x1024 - 1920x1080 - 1280x1024
    Hard Drives
    Crucial MX100 256 GB SSD and 500 GB WD Blue SATA
    PSU
    Thermaltake TR 620
    Case
    Power Up Black ATX Mid-Tower Case
    Cooling
    Stock heatsink fan
    Keyboard
    Logitech Wireless K350 Wave
    Mouse
    Logitech M570 Trackball and T650 TouchPad
    Internet Speed
    80 Mbps Down 30 Mbps Up
    Browser
    Internet Explorer 11
    Antivirus
    Windows Defender
    Other Info
    HP DVD1040e Lightscribe - External USB2

alphanumeric

slightly off center
VIP Member
Guru
Gold Member
#13
There is a Pro key and a Core key? The one you use to install has to match the 8 key your going to activate with.
 

My Computer

System One

  • OS
    Windows 10 Education 64 Bit
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Asus
    CPU
    AMD Phenom II X4 980 Black Edition Deneb 3.7GHz
    Motherboard
    ASUS M4N68T-M V2 µATX Motherboard
    Memory
    8GB 4GBx2 Kingston PC10600 DDR3 1333 Memory
    Graphics Card(s)
    NVIDIA Geforce GT640 2 Gig DDR3 PCIe
    Sound Card
    VIA VT1708s High Definition Audio 8-channel Onboard
    Monitor(s) Displays
    22" LG E2242 1080p and 2 19" I-INC AG191D
    Screen Resolution
    1280x1024 - 1920x1080 - 1280x1024
    Hard Drives
    Crucial MX100 256 GB SSD and 500 GB WD Blue SATA
    PSU
    Thermaltake TR 620
    Case
    Power Up Black ATX Mid-Tower Case
    Cooling
    Stock heatsink fan
    Keyboard
    Logitech Wireless K350 Wave
    Mouse
    Logitech M570 Trackball and T650 TouchPad
    Internet Speed
    80 Mbps Down 30 Mbps Up
    Browser
    Internet Explorer 11
    Antivirus
    Windows Defender
    Other Info
    HP DVD1040e Lightscribe - External USB2

theog

VIP Member
VIP Member
Gold Member
Posts
5,591
#14
You can those key.

Note   Note
Note that although you may previously purchase a legit Windows 8 product key, the product key is unlikely able to be used to install or upgrade to Windows 8.1. Hence you will need the following product key to initiate the install or upgrade:


Windows 8 (core): 334NH-RXG76-64THK-C7CKG-D3VPT

Windows 8 PRO: XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB


The keys above will let you install 8.1, but that's all it does. After installation is complete, you will still have to activate with your own Windows 8 key.
 

My Computer

System One

  • OS
    ME, XP,Vista,Win7,Win8,Win8.1
    Computer type
    PC/Desktop
    Other Info
    Notebooks x 3

    Desktops x 5

    Towers x 4

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