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This problem was repeating itself for at least 30% of installations and I was seriously despising Microsoft for creating such a buggy installer. If the Error Office installation stuck at 51% is occurred due to the system fileĬorruption, it could be fixed easily by the SFC scan.This became such a huge issue for me that I was getting so nervous, stressed, and sweaty when getting assigned a task to reinstall the Office suite for a user. Step 3: SFC Scan to fix Error Office installation stuck at 51%Įrror Office installation stuck at 51% also occurs in the case of system file errors orĬorruption. Also, change the DWORD values in below keys from 0 to 1 in Office common registry folder. HKEY_CURRENT_USER\Software\Wow6432Node\Microsoft\Office\15.0 HKEY_CURRENT_USER\Software\Wow6432Node\Microsoft\Office\14.0 HKEY_CURRENT_USER\Software\Wow6432Node\Microsoft\Office\12.0 HKEY_CURRENT_USER\Software\Wow6432Node\Microsoft\Office\11.0 HKEY_CURRENT_USER\Software\Microsoft\Office\15.0 HKEY_CURRENT_USER\Software\Microsoft\Office\14.0 HKEY_CURRENT_USER\Software\Microsoft\Office\12.0 HKEY_CURRENT_USER\Software\Microsoft\Office\11.0 Delete the preinstalled or older registry key which blocks the installation of the latest version or update. In the presence of an Online or offline technician.įor more information on back up of registry follow the Microsoft kb article 322756 Registry before initiating the registry repair as the registry is a highly the sensitive element of a computer system and it is recommended to be done In order to fix Error Office installation stuck at 51%, it is required to repair the registry keys and rebuilt the string values.

A single key value corruption or change may lead to malfunctioning of the entire Microsoft Office Suite Application. Step 2: Registry repair to fix Error Office installation stuck at 51%Įrror Office installation stuck at 51% also occurs due to registry corruption or key-valueĮrrors. Try installing or updating Microsoft Office and check whether the Error Office installation stuck at 51% is fixed. Click on YES or OK confirmation prompt if prompted. Click on settings and navigate to real time protection. Open Antivirus application installed on the computer.