A product key is a character sequence that acts as the license to a software product, and often required as proof of purchase. Also sometimes known as serial number.

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Retrieving OEM-SLP key from OEM Recovery DVD

I have a number of HP ProDesk 600 G1. I use Windows Deployment Server (WDS) to deploy a custom image to these machines (effectively removing HP bloatware) and I'm trying to find the OEM-SLP key. I ...
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1answer
74 views

How to take advantage of free upgrade to Windows 10

We have 3 laptops that came with pre-Installed Windows 8 Single Language OEM. We don't want to use Windows 10 right now but maybe later someone need to use it so I want take advantage of free upgrade ...
3
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1answer
7k views

Downgrade from Windows 7 Ultimate to Home Premium?

A few months ago, I acquired a Windows 7 Ultimate product key and updated from Home Premium to Ultimate. Well, now I get the "This copy of Windows is not genuine" message. I have the Home Premium ...
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1answer
66 views

Can I use windows 10 installation media that I made by Media Creation Tool to install in another computer

I have made bootable flash drive using Media Creation Tool (Windows 10 Single Language) from laptop that have activated Windows 8 to use it for upgrade or clean install later. my question is: can I ...
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1answer
81 views

Can I install windows 10 in windows 8 laptop using the same product key

I have laptop that come with windows 8 installed and I install windows 10 on the same hard drive (in new partition) using same product key. I want to keep windows 8 and don't want to use windows 10 ...
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2answers
46 views

How do I know where exactly my .reg will be installed in the registry?

I am going to install a .reg file and I want to know, where exactly in my registry will it be installed? Is there a way to find out the registry path? I want to locate the 20 character serial number ...
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1answer
109 views

Product Key for windows 7

Hello can anyone tell me about the windows product key I have brought a dvd to install windows 7 please tell me where is the product key written there is a barcode written in its cover is that the ...
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0answers
42 views

Transferring Windows 10 lisence after clean install

I got an SSD and did a clean installation of windows 10 after downloading the official ISO image. The old HDD is still able to boot the old windows 10 installation. Now I need to activate the new ...
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1answer
34 views

Preinstalled Windows 7 vs. Vendor Win10 on DVD vs. Win10 from Microsoft

I bought a new HP ProDesk 400. This machine has a preinstalled Windows 7 Pro, which I could setup manually. I also got a Windows 10 Pro DVD from HP (labeled 'DVD-Kit 836297-DW2') I don't see any COA ...
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1answer
55 views

SSD death reinstall windows 10 with existing windows 7 key

My SSD is totally dead. Really dead, i can't see it in the explorer connected over USB, it's not shown in the BIOS, it's not shown in a linux live environment.. Really dead. So the problem is that my ...
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3answers
113 views

Is the windows 10 product key in BIOS?

My new laptop's preinstalled Windows 10 was activated as soon as it was connected to the internet. But no product keys were shown to me. There is no product key label on the laptop. Somewhere I read ...
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1answer
193 views

Is it possible to use a Windows 10 product key to activate a Windows 7 installation?

This question is the opposite of the problem that most people have, and I haven't found a good answer for it yet. My company has custom hardware configurations on shipped systems, and we are ...
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5answers
67k views

Windows 7 product key does not work on Windows 10

I just did a fresh Window 10 installation from .iso files on the computer I was running Windows 7 on before. I have the original Windows 7 DVD's, with a valid key that I was using before. Now I tried ...
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1answer
116 views

How to recover lost Microsoft Office 2013 Product Key after Windows 10 Reset PC

Although the Windows Lost Product Key question has been asked before, this is slightly different. I did 'Reset this PC' from Windows 10 Recovery without taking a backup of the system or files. All my ...
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1answer
3k views

Can I change a Windows Server 2012 product key later?

Suppose I have a personal key through DreamSpark, but I'm still waiting for a company key (site licence or something). Can I install Windows Server 2012 on our dev server now with my personal key so ...
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1answer
72 views

Lost my windows product key and the hard drive is dead , and this has no cd : How do I recover?

I had windows 7 Professional running on this machine. I got this machine from my attic, but the key and Cd are lost. The HDD died a while ago and doesn't get detected in the BIOS. Is there anyway of ...
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2answers
89 views

How to wipe an Asus laptop and not lose the Windows product key?

How do I wipe my Asus laptop without losing the Windows product key? The machine was originally 8.1 64, now it's 10 64. Where can I find this key? Should I make a backup of the recovery partition? If ...
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5answers
3k views

Unable to upgrade Windows 10 edition from Home to Pro

I have a Lenovo laptop which upgraded from Windows 8.1 Home to Windows 10 Home. I have a (legitimate) Windows 10 Pro key which I ran through the "Change Product Key" wizard. After a reboot I get an ...
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3answers
80k views

Where can I download a rescue disk for Windows 8?

Where can I download a rescue disk for Windows 8? I have paid for Windows 8, but I would like to be able to download a Windows 8 repair disk using my product key. Is this possible?
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4answers
34k views

How to get windows 7 cd key from command prompt or linux live disk?

Recently my windows 7 installation broke and refuse to boot (see here). I wish to reinstall but only have 1 cd key. Is there a way to retrieve my current cd key with the use of only command prompt ...
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2answers
110 views

Win10 OEM key extraction. No MSDM tab

I just bought a new Dell XPS 13 with win10 pre-installed. I want to completely wipe the drive and install Ubuntu 16.04. But before I do that I would like to extract the oem product key. I've tried ...
0
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1answer
112 views

Reinstalling windows 10 free upgrade, which key should i use [duplicate]

Hello my parents updated their laptop with Windows 7 to Windows 10, apparently by mistake. Since they do it themselves, I did not see the terms of conditions nor any information displayed before the ...
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1answer
1k views

Getting error code 0xc004f210 when trying to activate Windows 10 with a Windows 8 product key

I have a Lenovo G580 laptop that came with pre-loaded Windows 8 on it. I did a fresh install to Windows 10 using the Microsoft Media Creation Tool and rebooted then the installer asked me for the ...
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5answers
82k views

How do I find which serial I used for Photoshop CS5 on my computer?

I want to move my Photoshop CS5 installation to a new computer. Unfortunately, I lost the paper with the cd-key. Is there a way to recover the serial from my local installation?
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1answer
84 views

Check Office product keys online [duplicate]

We have like 20 Office 2010 Product Key Boxes but we have no clue which one are used and which one are free. Is there any way to check which one are free?
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3answers
2k views

Determine if product key is used on multiple computers

I'm the sole programmer at company. Not only that, I'm the sole person who's remotely computer literate above the "I can check my email". As such, I've been asked to go to all the machines, and ...
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0answers
147 views

How to find Windows 8.1 Product Key After Upgrading to Windows 10

I had purchased originally installed windows 8.1 Laptop which got upgraded to windows 10. Can I retrieve my windows 8.1 product keys now after upgradation to windows 10.
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1answer
137 views

Check partially unreadable CoA Product Key

Two characters are missing on a torn Windows 7 Professional ACER sticker. While I can build a list of matching product keys with combination generator like this one, how could I check its validity? ...
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1answer
170 views

Skip upgrading W8 Pro to W10 and install W10 and use key from W8 Pro?

I am sorry to have to ask this question, but I do not have the points to just comment on some of the similar questions: Windows 10 Clean Install and Windows 8.1 Product Key [duplicate] Can I install ...
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3answers
148 views

New computer purchased without COA or Product Key

My brother recently purchased a new computer with Windows 7 Home Premium 64 bit installed on it. He got it from either an individual, or a company, I'm not sure which. The problem is, when he first ...
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1answer
1k views

Windows 7 Product Key for Download Windows 7 Disc Images (ISO Files)

I lost my Windows 7 Product Key , so I restored it by software as Belarc and NirSoft , both them gave my the same Product Key . Now I try to Download Windows 7 Disc Images (ISO Files) , and I asked ...
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0answers
26 views

Is there a way to see when the product key of a windows os was last changed?

Is there some way I can see when the product key of Windows Server was changed last? I'm trying to find out if our old IT guy changed the product key on one of our MSDN licensed OSs before he left.
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0answers
18 views

Can I activate windows 10 with Windows 8.1 Product Key? [duplicate]

I have a windows 8.1 product key. I have plan to clean install windows 10. After I download the Windows 10 ISO and Can I install it using windows 8.1 product key?
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1answer
315 views

Windows 7 Activation key stop working

I tried to upgrade to Windows 10 a few days ago. Something went wrong, and my computer began to operate extremely slow. After several unsuccessful attempts at troubleshooting, I decided to reinstall ...
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1answer
286 views

How to enter product key for trial version of Office 2013

My new laptop came with a trial version of Microsoft office Professional Plus, this trial lasts for 30 days. So I found a website that sells the key I need, here is the link to the website: http://www....
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votes
3answers
15k views

Determine which software product a Microsoft Product Key activates

Without a product key being labelled, is there is any way to identify what Microsoft software product a given product key is meant to activate? Let's say for example I had the product key ABCDE-...
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1answer
1k views

Windows 7 product activation failed, but the previous activation code worked — is there anything to worry about?

Alright, so there was a few reasons that made me have to reinstall Windows 7 onto my machine. I am running on a Lenovo Ideapad Y480. When Windows 7 was reinstalled, it asked me for my product ...
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0answers
67 views

Is there any way to get Windows 8 (not 8.1) Installation Media if I only have access to Windows 8.1?

Long story short, I've got a device and an OEM Product Key for a licence for Windows 8 on it. After a complicated journey of many upgrades and downgrades now I find myself with Windows 8.1 installed ...
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1answer
74 views

Is there a way to reusing a product key for Windows? (with specific details, please read description) [duplicate]

Here's how the story goes Bob buys a laptop with the Windows 7 OS on it (on the bottom of the laptop is a windows 7 product key, but it's useless, because it's already used on that laptop) He then ...
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2answers
176 views

purchase a laptop to recycle windows product key

I need to activate Windows 7 ultimate x64 on my workingstation and I have to buy a product key. I'm considering opting for a solution with a greater value for money: purchasing a cheap used laptop ...
0
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1answer
364 views

Reinstall Window 8 single language on a Dell preinstalled laptop

My Dell laptop came with Windows 8 Single Language 64bit, the below sticker having product key got erased. Contacted dell and they told product will be embeded inside Motherboard, I just need to run ...
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0answers
42 views

Reinstall windows 10 with new build [duplicate]

I had Orginal Windows 8.1 and I just upgraded it to Windows 10 'build 10240'. Now, I doesn't get any updates like update to build 10586 (maybe you know why). I want to perform clean install of new ...
0
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1answer
470 views

How to upgrade from Windows 10 Home without product key to Pro

So, being the dummy I am, I installed Windows 10 Home over Windows 7 Pro. Right now, Windows 10 Home is unactivated because I can't use my 7 Pro key to activate 10's Home edition (I get error code: ...
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1answer
161 views

Clean install of Windows 10 OEM: license key issues?

I have been a Linux user after switching from Windows 98 and never looked back. However, a friend asked me to set up their brand-new Lenovo ThinkPad with Windows 10. I was totally startled at how ...
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2answers
9k views

8.1 to 10 setup : Something happened > Setup has failed to validate the product key

Just like millions of other users, I'm attempting to upgrade to windows 10. I have a Dell laptop running 8.1, which had windows reinstalled once. That was because I swapped the HDD out for a SSD and I ...
0
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0answers
89 views

Product key invalid after going from windows 7 to 10 and back again

I upgraded my Window 7 Home Premium to Windows 10, then went back to Windows 7 and now it says my product key is invalid for activation and I have 7 days to enter new key. Any idea how to correct ...
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0answers
172 views

Find Windows 7 Product key after windows 10 upgrade

I know a form of this question has been asked before but... A client of mine upgraded her pc from windows 7 to windows 10 more than 30 days ago. She hates windows 10 and wants windows 7 back on there....
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1answer
285 views

Changing product key on Windows 7 MSDN

How do I change the product key for a MSDN based Windows 7 Ultimate 64-bit PC? I am aware that if I had a retail version, then the process would be simple, namely Control Panel | System | Windows ...
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1answer
3k views

Windows 10 “Device Limit Reached”

I have Windows 10 installed on 3 laptops and only 1 of them can be activated. I checked the product keys and they are the SAME. All 3 of those laptops had their own product keys prior to the upgrade. ...
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1answer
146 views

My Windows 7 Product Key does not match with my current windows version

let me explain Since I'd heard that Windows 10 was coming for free, I been crazy waiting for the notification to appear on my task bar, but nothing would happen. Two months ago I was surprised ...