FJCC wrote:Can you reboot the computer and try the installation?
This may run the nasty "quick-starter" of the previous installation. Then you have another soffice process preventing the installation process.
If you see the blue icon with white seagulls near the Windows clock, this is the quick-starter. It preloads the office suite without visible application window on every system start. Right-click this icon and quit this thing. Just to be sure, you may use the task manager as described above. If there is no soffice, no OpenOffice is running. Your installation package downloaded from openoffice.org (via sourceforge.net) should install just fine.
For an absolutely clean install discarding templates, macros, spell check dictionaries and other customizations of any previous installation:
1) Close all office windows plus any "quick-starter". The task manager confirms that no soffice is running.
2) Get the "Windows Appls and Features" panel and uninstall OpenOffice.
3) Open the WIndows Explorer (file manager) and enter %APPDATA%\OpenOffice\4\ into the address bar. There you find a folder named "user". It contains templates, macros, spell check dictionaries and other customizations from your previous installation.
4) Rename that folder to user.backup or any other name.
5) Start the installation of the new version downloaded from openoffice.org (via sourceforge.net). The new installation will assume a first time installation because of the missing folder. It will create a new user folder.
Install the latest versions of any extenstions you don't want to be missing. Do not install very old packages you may find on your disk.
If you are missiing other things from your old installation, they certainly reside in the renamed user folder and may be transferable to the new one.