Name: Windows 10 Pro Product Key for 5 PCs | OfficeGSM
Brand: Microsoft
SKU: OG-58E268D1
Price: 19.95 USD
Availability: InStock
Rating: 5.00 (5 reviews)

Question 1

How do I activate Windows 10 Pro on each of the five PCs?

Accepted Answer

On each computer, open Settings, Update and Security, Activation, click Change product key, enter one of the five keys from our email, and click Next; a few seconds later the page reads "Windows is activated with a digital license". Do this once per machine with a different key each time. If you are clean installing, you can enter the key when setup asks for it and skip the Settings step entirely, since Windows activates as soon as it reaches the desktop and connects to the internet. The order does not matter and the five keys do not need to be activated on the same day, so you can set up machines as they arrive. For a PC that is deliberately offline, press Windows and R, type slui 4, choose your country, and follow the phone activation wizard; it exchanges an installation ID for a confirmation ID over an automated call and needs no internet on the PC. The error you are most likely to see with a five-pack is 0xC004C008, which means the key you typed has already been activated on one of the other machines. Check your list, use the next unused key, and you are done. If any key refuses to activate for a reason you cannot see, send our support team the code and a screenshot and we will fix or replace it.

Question 2

Can I use these keys on PCs that already have Windows 10 installed?

Accepted Answer

Yes, and for machines running Windows 10 Home it is the quickest possible upgrade: enter one of the keys under Change product key and Windows switches the edition to Pro in place, keeping every file, program and setting, with one restart. For machines already running Windows 10 Pro that are unactivated, on an expired evaluation, or showing the "Activate Windows" watermark, entering a key simply activates them, again with nothing reinstalled. For machines running Windows 10 Enterprise, Education or an LTSC edition, the Pro key will not switch the edition and a clean install from the standard Windows 10 media is needed. A quick way to see what you are dealing with across five computers is to run winver on each one and note the edition line. Mixed fleets are common: a five-pack often ends up upgrading two Home laptops in place, activating a refurbished desktop that came without a license, and clean installing on two new builds. All of that is fine, because each key is an ordinary Windows 10 Pro license that does not care how the operating system got there. Back up documents before an in-place edition change as a precaution, even though the process is designed to preserve them.

Question 3

Are these retail or OEM keys, and can I move one to a different computer later?

Accepted Answer

Each key is a genuine lifetime Windows 10 Pro license for one computer, intended to stay with the PC it was first activated on. In day-to-day terms it behaves like a device license: you can reinstall Windows as often as you like on that machine, swap drives, memory, graphics cards and even the CPU, and activation follows automatically. A motherboard replacement is treated by Microsoft as a new computer, so if one of the five machines has its board replaced or is retired and replaced entirely, contact our support team before reinstalling and we will look at the options with you. We do not sell these as MAK or KMS volume keys, so there is no shared activation counter and no KMS host to maintain, and there is no expiry, renewal or subscription. When a machine leaves your fleet, wipe it or run slmgr /upk in an elevated command prompt so its license is not active in two places, and cross it off your list. If you regularly replace machines, the practical approach is to treat the five keys as belonging to five specific computers and to buy new licenses with new hardware; at our per-key price that costs less than the time spent on transfers.

Question 4

Is this one key for five PCs or five separate keys?

Accepted Answer

It is five separate Windows 10 Pro product keys, each of which activates exactly one PC. There is no single "5-user" key. We think that is the better design for a small business: a single multi-activation key is a shared resource that can be exhausted or blocked and then affects every machine at once, while five independent keys mean each computer has its own genuine license and its own digital license record at Microsoft. It also makes life easier when a machine is sold or scrapped, because you retire one key and the other four are untouched. In the email, the five keys are listed on separate lines under your order number. Copy them into a spreadsheet with the computer name, serial number and the date you activated each one. If you try to use one key on a second machine, Windows returns error 0xC004C008 and tells you the key is in use elsewhere, which is the reminder to pick the next unused key. If your office grows past five computers, order another pack or a single key; the products mix freely in one order and every key in the store works the same way. Ask our support team about pricing if you are licensing more than ten machines at once.

Question 5

How long does delivery take and what exactly do I receive?

Accepted Answer

Delivery is by email, normally within minutes of your payment being confirmed. The email contains all five Windows 10 Pro product keys listed individually, a download link for the Windows 10 installation files, and a short guide covering USB creation, clean install, the Home to Pro in-place upgrade and activation. Nothing is shipped physically, so there is no waiting for a box and no risk of a lost parcel. If a payment is held for a manual review the email can take a little longer; if nothing has arrived within an hour, check your spam or promotions folder first and then message our support team with your order number so we can resend the keys manually. The keys are also visible in your account on our website under Orders, which acts as a backup if the email is deleted. We suggest saving the keys somewhere safe in addition to the spreadsheet you keep for your machines, because a future clean install on a PC whose hardware has changed may ask for the key again. Business buyers who need a formal invoice showing the company name and tax number can request one from our support team for the same order, and we will send it by email.

Question 6

Do the keys work for both 32-bit and 64-bit Windows 10 Pro?

Accepted Answer

Yes, every key in the pack activates either the 32-bit (x86) or the 64-bit (x64) build of Windows 10 Pro, because Microsoft licenses the edition rather than the architecture. This is handy for a mixed office: four modern desktops on 64-bit and one old point-of-sale machine that needs a 32-bit driver for a receipt printer can all be licensed from the same pack. You choose the architecture when you create the installation media, and the key is indifferent. For nearly every computer built since 2010, 64-bit is the right choice; it uses more than 4 GB of RAM, runs current drivers and is what software vendors test on. The 32-bit build remains for legacy hardware and drivers only. To check an existing installation, open Settings, System, About and read System type. Switching a machine from 32-bit to 64-bit is not possible in place; it requires a clean install from 64-bit media, after which the same key activates the same PC. Note that Windows 11 is 64-bit only, so any machine you later move to Windows 11 Pro will need the 64-bit build, which is another reason to use 64-bit Windows 10 from the start where the hardware allows it. Our support team can help you confirm the architecture of each machine before you install.

Question 7

Do these Windows 10 Pro keys also activate Windows 11 Pro?

Accepted Answer

Yes, each Windows 10 Pro key in the pack also activates Windows 11 Pro on a computer that meets the Windows 11 hardware requirements, at no additional cost. Microsoft mapped Windows 10 editions onto Windows 11 editions one for one, so a Pro key is a Pro key on either system. You can install Windows 10 Pro with a key and later accept the Windows 11 upgrade in Windows Update, or you can clean install Windows 11 Pro from the start and enter the same key when asked; both routes end in an activated Windows 11 Pro machine. What decides the path is hardware: Windows 11 needs a supported 64-bit CPU (roughly Intel 8th generation or AMD Ryzen 2000 and newer), TPM 2.0 turned on in firmware, UEFI with Secure Boot capability, 4 GB of RAM and 64 GB of storage. Microsoft's PC Health Check app gives a yes or no in seconds. In a typical five-machine office, the newer laptops pass and the older desktops do not, and this pack covers both cases with the same keys. If you already know all five machines are Windows 11 ready and you want current updates from day one, our Windows 11 Pro 5 PC pack is the more direct purchase.

Question 8

What happens if I replace a motherboard or retire one of the five PCs?

Accepted Answer

The license on that machine is tied to its hardware, and Microsoft treats a new motherboard as a new computer, so the key from the retired machine does not automatically move to its replacement. All other component changes are fine; add RAM, replace a failed SSD, upgrade the graphics card or CPU, and activation follows along, occasionally after clicking Troubleshoot on the Activation page. If a board is replaced under warranty with the same model, activation nearly always survives. If you signed in with a Microsoft account on that PC, the Activation troubleshooter also offers "I changed hardware on this device recently", which can reactivate after a board change by selecting the PC from your account. For a genuine replacement PC, or a rebuilt machine with a different board, please message our support team first and describe what happened; we will look at the options with you rather than let you find out after a full reinstall. Update your spreadsheet when a machine is retired, wipe it or remove the key with slmgr /upk before it leaves, and if you need a license for the new machine, a single Windows 10 Pro or Windows 11 Pro key from us fills the gap without buying another five-pack.

Question 9

Do I need a Microsoft account to install and activate Windows 10 Pro on these machines?

Accepted Answer

No, a Microsoft account is not required for installation or activation; the product key activates against Microsoft's servers and the resulting digital license is tied to the hardware, not to a person. Windows 10 Pro offers a local account during setup, which is what most small offices want, and machines can be joined to an Active Directory domain or Azure AD instead of using personal accounts at all. That is one of the reasons to choose Pro over Home in the first place: the Group Policy editor lets you switch off the consumer sign-in prompts, suggested apps and Cortana features that Home users cannot control. Linking a Microsoft account does add one convenience, the ability to reactivate through the Activation troubleshooter after a hardware change by selecting the PC from the devices on that account, so some IT people sign in once with a shared admin Microsoft account for that purpose and then use local or domain accounts for staff. It is optional either way. If your office uses Microsoft 365, the Office apps will ask for their own work account sign-in, which is a separate matter from Windows activation and does not affect the keys in this pack. In short, activation depends on the key and the hardware, never on who is signed in.

Question 10

Do the five PCs still receive updates after Windows 10 end of support in October 2025?

Accepted Answer

Not for free from Microsoft, and we want to be clear about that before you buy. Windows 10 Pro reached end of support on October 14, 2025. The keys still install and activate, the licenses are permanent, and the machines keep working, but new monthly security patches for Windows 10 are now delivered only to PCs enrolled in Microsoft's Extended Security Updates program, which has business and consumer enrollment options. Windows Defender definitions continue to update for some time, and every update released before the cutoff still installs normally. A small business has two sound paths. Enroll the machines that must stay on Windows 10 in ESU, or upgrade the machines with compatible hardware to Windows 11 Pro, which these same keys activate at no cost, and receive current updates there. Most of our five-pack customers do a mix: newer laptops move to Windows 11 Pro, while an older desktop running a Windows 10-only application stays put on ESU or on a restricted network. Our own support does not stop at any date. Our support team is available around the clock for reinstall, activation and lost-key questions for as long as you own the keys. If you are unsure which of your five machines can run Windows 11, run PC Health Check on each before you decide how to split them.

Question 11

What is the difference between buying this 5 PC pack and five single Windows 10 Pro keys?

Accepted Answer

The keys are identical; the pack simply costs less per computer and arrives as one order with one invoice. Each key in the pack is a standard Windows 10 Pro license for one PC, exactly the same as the key in our single Windows 10 Pro listing, with the same lifetime term, the same activation method and the same right to Windows 11 Pro on compatible hardware. The saving comes from our side: one transaction instead of five means less payment processing and less admin, and we pass that on. For a small business the one-invoice part matters almost as much as the price. Your accountant gets a single line item for "Windows 10 Pro x5" rather than five receipts, and if you ever need to demonstrate that the office is properly licensed, one order confirmation with five keys listed is easy to file. If you need three or four keys rather than five, ordering the single key with a quantity works, and the pack becomes the better deal at five. If you need eight, a pack plus three singles is fine, or ask our support team about pricing for a larger quantity. Everything ships in the same email and activates the same way.

Question 12

Can I use the keys in different countries and languages?

Accepted Answer

Yes, the five keys are global and each one activates any language version of Windows 10 Pro, so a company with an office in the United States and a branch in Mexico or Germany can license machines in both places from the same pack. Microsoft does not region-lock Windows product keys. Language is chosen when you download the installation media or during setup, and additional display languages can be added later from Settings, Time and Language, without any effect on activation. Time zone, keyboard layout, date format and currency are regional settings, not licensing settings. The only edition point to know is that the pack contains standard Windows 10 Pro keys, not Pro N; the N edition is a European variant without Windows Media Player and related codecs, and if you specifically need it, our support team can point you to the right product. Because delivery is by email there is no shipping, customs or address restriction, and you can forward individual keys to colleagues in other locations along with the download link. Phone activation, where needed, simply uses the Microsoft number for the country selected in the wizard on that particular PC. One order therefore covers a distributed team without any extra paperwork.

Question 13

Can I reinstall Windows 10 Pro later on the same PCs?

Accepted Answer

Yes, every machine that has activated one of the five keys holds a digital license, so you can clean install Windows 10 Pro on it again as many times as you need and it reactivates without a new purchase. On the reinstall, boot from Windows 10 media, click "I don't have a product key" if you prefer, choose Windows 10 Pro in the edition list, and let it connect to the internet; Microsoft recognizes the hardware and activates. If it does not, enter the key you originally used on that machine from your spreadsheet under Change product key. This is where keeping the list pays off, because using a key that belongs to a different PC in the fleet produces the "in use" error. Typical reasons to reinstall are moving to an SSD, cleaning up a machine before handing it to a new employee, recovering from malware, or resetting a refurbished PC before resale (in which case you may prefer to leave your Pro key off the machine and let it activate with whatever OEM key is in its firmware). If a motherboard has been replaced since the original activation, treat that PC as a new device and contact our support team first. Keep the ISO and the key list together so any rebuild takes an hour, not an afternoon.

Question 14

What is your refund policy if one of the keys does not work?

Accepted Answer

If a key does not activate and our support team cannot fix it, we replace that key or refund it. That is the policy for every Windows and Office license we sell, and with a five-pack it applies key by key: a problem with one key does not affect the other four, and we do not ask you to return the whole pack. Before replacing anything we will work through the issue with you, because most activation failures have a simple cause: a key entered on a second machine by mistake (error 0xC004C008), a typo (0xC004F050), a PC that is running Enterprise or an LTSC edition rather than Pro, an offline machine that needs phone activation, or a firewall blocking Microsoft's activation servers. Please send the exact error code from the Activation page, a screenshot, and the output of winver for the machine in question. If the key itself is faulty we send a replacement straight away; if you would rather have your money back for that key, we refund to your original payment method. Because keys are digital and delivered instantly, we cannot refund a key that has already been activated and is working, or a key bought for the wrong purpose after it has been used. If you are unsure whether this pack fits your machines, ask us before you order and we will tell you honestly.

Product	Microsoft Windows 10 Professional, 5 separate product keys, 32-bit or 64-bit, any language
License type	Genuine lifetime license keys, one-time payment, no subscription
Devices	5 keys, each activates 1 PC (5 computers in total)
Delivery	By email, typically within minutes of payment, all five keys in one message with a guide
Activation	Online through Settings, Update and Security, Activation, or by phone
Works for	Clean installs, upgrading Windows 10 Home to Pro in place, replacing unlicensed or evaluation copies, refurbished PCs
Updates	Windows 10 support ended October 14, 2025; each key also activates Windows 11 Pro on compatible hardware
Guarantee	If a key does not activate and our team cannot fix it, we replace it or refund you

	Windows 10 Pro, single key	Windows 10 Pro for 5 PCs (this pack)	Windows 11 Pro for 5 PCs
Keys included	1	5, each for one PC	5, each for one PC
Price per computer	Standard	Lower than five singles	Lower than five singles
Operating system installed	Windows 10 Pro (or Windows 11 Pro with the same key)	Windows 10 Pro (or Windows 11 Pro with the same key)	Windows 11 Pro
32-bit installer	Yes	Yes	No, Windows 11 is 64-bit only
Runs on PCs without TPM 2.0	Yes	Yes	No
Microsoft security updates	Ended Oct 14, 2025 on Windows 10	Ended Oct 14, 2025 on Windows 10	Current
Best for	One machine	Mixed fleets with older hardware, Windows 10-certified software	New hardware, current updates from day one

Component	Minimum	Comfortable for office use
Processor	1 GHz or faster, 32-bit or 64-bit	Any Intel Core or AMD Ryzen from the last eight years
Memory	1 GB (32-bit) or 2 GB (64-bit)	8 GB
Storage	32 GB	256 GB SSD
Graphics	DirectX 9 with WDDM 1.0 driver	Integrated graphics are fine
Display	800 x 600	1920 x 1080
TPM and Secure Boot	Not required for Windows 10	TPM 2.0 needed only for a later move to Windows 11

Microsoft Windows 10 Professional For 5 PCs – Lifetime License

Windows 10 Professional for 5PCs

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Windows 10 Pro Lifetime License Key for 5 PCs: The Short Version

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