Windows 10 professional 32/64 bit 1PC 日本語正式正規版認証保証ウィンドウズ win10 OS ダウンロード版プロダクトキーライセンス認証永久

Microsoft Windows 10 Pro — 32/64-bit, 1 PC, Japanese Version (Download Edition)

On sale Microsoft

Genuine Windows 10 Pro key for one PC, sent by email

Prices include tax / download editions are available as soon as payment is complete

Release date: 2026/01/10

A Japanese-version Windows 10 Pro product key for a single PC, delivered by email so you can download, install and activate straight away.

Genuine manufacturer license
Free shipping on orders over ¥3,980
Unopened items can be returned within 30 days
ダウンロード版（プロダクトキーをメールでお送りします）

Manufacturer	Microsoft
Supported OS	Windows 11 / 10
License	1 device(s)

This listing supplies a genuine Japanese-version product key for Windows 10 Pro, the business edition of Microsoft’s Windows 10 operating system. The key can be used with either a 32-bit or 64-bit installation and covers a single PC.

Delivery is by email: once your order is confirmed the product key is sent to you, and you can obtain the installation media, install Windows and activate it with that key. Nothing is shipped physically, so there is no disc or package to wait for.

Key details

Edition: Windows 10 Pro, Japanese version
Licence: 1 PC, perpetual use
Architecture: 32-bit / 64-bit
Delivery: download edition, product key by email

Suits professionals, freelancers and small offices that need the Pro edition rather than Windows 10 Home.

Manufacturer	Microsoft
Release date	2026/01/10
Supported OS	Windows 11 / 10
License	1 device(s)
Delivery method	Download edition (product key sent by email)

Support after purchase

Products you purchase can be re-downloaded at any time from My Account. Contact our Japanese-language support desk for help with installation or settings.