When adding a language, sometimes the "Next" button is unclickable.
: Select Install display languages and point the installer to your downloaded Arabic .cab file.
If you are managing multiple machines or an offline system, you can use the Local Experience Packs (LXP) Language Pack ISOs Language packs for Windows - Microsoft Support download 2021 arabic language pack for windows 10 pro 64 bit
Microsoft no longer provides standalone executable installers for language packs to home and Pro users. Instead, they are delivered as "Local Experience Packs" directly through the OS:
No external downloads or risky sites are needed. The pack is fully localized and includes keyboard, display, speech, and handwriting support. When adding a language, sometimes the "Next" button
: On the left sidebar, click Language , then select Add a language under the "Preferred languages" section.
After installation, follow these steps to switch to the Arabic interface: Instead, they are delivered as "Local Experience Packs"
Языковые пакеты для Windows - Microsoft Support