Microsoft Office may fail to install, repair, or update when error 30183‑27 appears—typically because the Click-to-Run service can't download or apply necessary updates, often due to network issues, antivirus/firewall interference, or corrupted service components. This halts Office installation or updates, leaving your apps inoperable. To resolve it, restart your PC to clear locked processes, then run the Office installer or updater as an administrator. If the error persists, temporarily disable all third-party antivirus, firewall, and VPN services that might block Office connections. Next, repair the Click-to-Run service: open an elevated Command Prompt and execute:
"C:Program FilesCommon FilesMicrosoft SharedClickToRunofficeclicktorun.exe" /repair
Once the repair completes, clear the Office cache by deleting the contents of:
%localappdata%MicrosoftOffice16.0OfficeFileCache
If the issue continues, uninstall any existing Office versions using the Microsoft Support and Recovery Assistant, and remove leftover folders in
%ProgramFiles%Microsoft Office, %ProgramFiles(x86)%Microsoft Office, and %localappdata%MicrosoftOffice. After that, run sfc /scannow in an elevated Command Prompt to repair any system file corruption, then reboot your PC and rerun the Office setup or update. These steps typically resolve error 30183‑27 and restore full Office functionality. For a detailed, step‑by‑step walkthrough with screenshots and extra tips, check out this guide.