Officially, Microsoft recommends using the to install language packs for Office 2016. However, this process has several drawbacks:

| Error Code | Meaning | Fix | | :--- | :--- | :--- | | | Fatal installation error | Run Microsoft Program Install & Uninstall troubleshooter, then reinstall repack. | | 1402 | Registry permission issue | Take ownership of HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\16.0\Language Resources . | | "Files in use" | Office app running | Close Outlook, Word, Excel, and Skype for Business. | | Missing fonts | Language requires specific system fonts | Download and install the official Windows Language Font Pack for that region. |

A popular “Office 2016 Arabic LIP repack” on torrent sites contained the Dridex banking trojan, detected by 47/60 antivirus engines on VirusTotal.

A is a modified installation package where the original files from Microsoft are bundled into a new, often more efficient, installer. These are popular for several reasons: