

Expand the "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office" key and then delete the "15.0" subkey.
REMOVE OFFICE LICENSE FROM REGISTRY WINDOWS 8.1
If you are running a 64-bit version of Windows 8.1 or 7, delete the "15.0" subkey from the "HKEY_CURRENT_USER\Software\Microsoft\Office" key. Expand the "HKEY_CLASSES_ROOT\Installer\Win32Assemblies" key and then delete the "_Office15*" subkey. Delete the "_F01FEC" subkeys from the the "Features," "Products" and "UpgradeCodes" keys.

Expand the "HKEY_CLASSES_ROOT\Installer" key. Minimize the keys you expanded so far, if the list of keys is too long. Expand the "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services" key and delete the "ose" subkey, if it is present. Expand the "Installer\UserData\S-1-5-18\Products" key and then delete the "_F01FEC" key. Expand the "Installer\Upgrade Codes" key and then delete the "_F01FEC" key. Expand the "Uninstall" key and then delete the " 0FF1CE" subkey. Expand the "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion" key. Expand the "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Delivery\SourceEngine\Downloads" key and then delete the " 0FF1CE}-" subkey.

Remove registry keys created by the MSI installation of Office 2013 by deleting the "HKEY_CURRENT_USER\Software\Microsoft\Office\15.0" and "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\15.0" subkeys.
