Instant digital delivery — keys emailed within minutes of payment

Home All Products Operating Systems Office & Productivity Deals Support

KJKIN

Genuine software licenses, delivered instantly

Secure PayPal checkout

Shop

All Products
Best Sellers
New Arrivals
On Sale

Help

Contact Us
FAQ
Activation Guide
Find My Order

Legal

Terms & Conditions
Privacy Policy
Refund Policy
Delivery Policy

Get deals in your inbox

All product names, logos, and brands are property of their respective owners. Microsoft, Windows, and Office are trademarks of the Microsoft group of companies. This store is an independent reseller and is not affiliated with, endorsed by, or sponsored by Microsoft Corporation or any other software publisher.

© 2026 KJKIN. All rights reserved.

Operating Systems

9 products

Availability & deals

In stock onlyOn sale

Max price

Product family

Edition

Operating system

Windows 10 Pro — Instant Key

Retail · Lifetime

Windows 11 Pro — Instant Key

Retail · Lifetime

Windows 10 Home — Instant Key

Retail · Lifetime

Windows 11 Home — Instant Key

Retail · Lifetime

Windows 7 Home Premium — Instant Key

Retail · Lifetime

Windows 7 Professional — Instant Key

Retail · Lifetime

Windows 7 Ultimate — Instant Key

Retail · Lifetime

Windows 8.1 — Instant Key

Retail · Lifetime

Windows 8.1 Pro — Instant Key

Retail · Lifetime

Operating Systems — KJKIN