This is a legitimate, digitally signed executable file created by Microsoft. It is installed automatically alongside every volume-licensed version of Microsoft Office 2010, 2013, 2016, 2019, 2021, and Office 365 ProPlus (device-based activation).
(For Office 2016/2019/2021/LTSC, path may be Office16 regardless of version.) ospprearmexe download verified
Troubleshooting OSPPREARM.exe: Fix "Product Activation Failed" Errors This is a legitimate, digitally signed executable file
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