Office Ltsc 2025 Key. On the other hand, if you don’t have a kms host computer supporting office 2021 activation, you need to use the mak product keys to activate the office 2025 ltsc preview products. Office ltsc 2021 is separate from office that's available through microsoft 365 (or office 365) plans.

Use multiple activation (mak) to activate office ltsc 2025: Which languages to download or install.