Office starts but closes after 30 seconds. Fix: The KMS emulator was killed by Defender. Restore KMS_emul.dll from quarantine. Re-extract the folder.
Ultimately, the portable version solves a niche problem: Productivity without boundaries. For the casual user, the free web versions of Word and Excel are safer. For the power user who lives on the edge, Version 2112 remains the holy grail of portable software. Office starts but closes after 30 seconds
: There is no official customer service or technical assistance for modified versions. End of support for Office 2021 - Microsoft Support Office starts but closes after 30 seconds