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10.00 $Select options This product has multiple variants. The options may be chosen on the product page
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Buy Genuine Windows License Keys — 7, 8, 10 & 11
Setting up or upgrading a PC starts with a genuine Windows license. KeyUpMart offers authentic Windows keys for every supported version, delivered instantly by email so you can activate the moment you check out.
Find the Right Windows Version
Windows 11 is the latest release, built for modern hardware with enhanced security and a refreshed interface. Windows 10 remains a dependable choice with broad software compatibility. Older editions like Windows 8 and Windows 7 are available for legacy systems that still depend on them.
Home, Pro, or Enterprise
Home editions suit everyday personal use. Pro adds BitLocker encryption, Remote Desktop, and management tools for professionals. Enterprise is built for organizations needing advanced security and centralized device control.
Genuine Keys, Fully Guaranteed
Every key is sourced through authorized channels and verified before delivery, with 24/7 support and a 30-day money-back guarantee behind every purchase.
Windows — Frequently Asked Questions
Everything you need to know before you buy Windows — clear answers, no surprises.
Yes, as long as your hardware meets Windows 11's requirements (TPM 2.0, compatible processor), you can use a genuine Windows 11 key to upgrade directly from Windows 10.
Home suits everyday personal use. Pro adds BitLocker encryption, Remote Desktop, and management tools for professionals. Enterprise is built for organizations needing advanced security and centralized control across many devices.
Yes, we offer genuine keys for Windows 7 and 8 specifically for legacy systems and specialized hardware or software that hasn't been updated for newer Windows versions.
No, a genuine Windows product key provides lifetime activation. Once activated, it remains valid for as long as you use that device, with no renewal required.
The main difference is transferability. A Retail key is tied to your Microsoft account and can be transferred to a new PC if you ever upgrade or replace your computer. An OEM (Original Equipment Manufacturer) key is permanently tied to the motherboard of the first PC it is activated on and cannot be transferred to a different computer. Retail is best for flexibility, while OEM is a great budget option if you don't plan on changing your hardware.
Yes, you can upgrade easily. Simply go to your PC's Settings > System > Activation, click on "Change product key," and enter your new Windows Pro key. The system will automatically unlock the Pro features and apply the upgrade without requiring you to completely reinstall your operating system.