Try these instructions from https://****/2020/03/office-is-installing-in-background-stuck-at-2.html
2 – Steps to remove Office
In case if the error persists even after running Office repair tool, uninstall Office from your computer.
- Open Control Panel using Start
- Click on Programs and select Programs and Features.
- Select Office Suite and click on Remove.
Note: If Office installation failed or it didn’t fix the error, manual installation is required to completely remove the Office Suite.
3 – Steps to remove Office manually to fix the Erroroffice is installing in the background stuck at 2%
If the error "We're getting things ready" is re-occurring, proceed with the following steps to manually remove Office program from
your computer.
Step 1: Remove the Windows Installer packages
- Find the Office 16 installation folder, typically located in **C:\Program Files**.
- Right-click the Microsoft Office 16 folder and select Delete.
Step 2: Remove the Officescheduled tasks
- Open a Command Prompt window as an administrator.
- At the command prompt, type the following commands and press Enter after each one:
schtasks.exe /delete /tn “\Microsoft\Office\Office Automatic Updates”
schtasks.exe /delete /tn “\Microsoft\Office\Office Subscription Maintenance”
schtasks.exe /delete /tn “\Microsoft\Office\Office Click To Run Service Monitor”
Step 3: Use Task Manager to end the Click-to-Run tasks
- Open Task Manager.
- Click the Processtab
- If the following processes are running, right-click each one, and then click End taskafter you select each process.
Step 4: Delete the Office files
- Press Windows logo key + R to open the Rundialog box.
- In the Open box, type %ProgramFiles%, and then click OK.
- Delete the “Microsoft Office 16” folder.
- Delete the “Microsoft Office” folder.
- Open the Run dialog box, type %ProgramFiles(x86)%, and then click OK.
- Delete the “Microsoft Office” folder.
Step 5: Delete the Officeregistry sub keys
- Open Registry Editor.
- Delete the following registry sub keys:
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\ClickToRun
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AppVISV
- HKEY_CURRENT_USER\Software\Microsoft\Office
- Then Delete the Office key.
Step 6: Delete the Start menu shortcuts
- Open a Command Prompt window as an administrator.
- Type %ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs, and then press Enter.
- Delete the “Microsoft Office 2016 Tools” folder.
4 – Download and install Office