cd "C:\Program Files\Microsoft Office\Office16" cscript ospp.vbs /rearm
Furthermore, downloading ospprearm.exe from untrusted sources exposes you to identity theft, data loss, and financial fraud. ---- Ospprearm.exe Office 2016 Download
To fix "Product Activation Failed" errors in Office 2016, you don't actually need to download —it is a built-in utility already located in your Office installation folder. Understanding Ospprearm
Activate Microsoft Office 2016 Now with Easy Steps - ATA International Office Online (free in browser) LibreOffice or OnlyOffice
Or use the full path: