Step 1 – Log into the computer in administrator mode.
Step 2 – Click the “Start” menu button, enter “services.msc” in the search text field, then press the “Enter” key.
If you're the admin in your organization, you should also click the Office 365 Admin tab in this topic, below, to find help for your particular issue.
Office 365 subscriptions: These include the fully installed Office applications.
Clean the default temp directory and free up hard-disk space by removing unneeded files.
Not enough disk space This error occurs on machines that do not have enough disk space to install the setup and store rollback files.
It is important to repair the computer as soon as a message with this error code appears as it can seriously damage the system.This is the temp directory that setup extracts files to and runs from.Either the temp directory does not have an adequate amount of available space, or it has too many files that may conflict with setup files.The actual error message that displays is “error 1603: A fatal error occurred during installation.” There are a few things that cause this to occur.Users cannot install software packaged in the Windows Installer format into an encrypted folder.Here are my steps and the additional links from Microsoft which may work for you (but which have still not resolved my own problem) Installing on a Windows 10 Desktop 8gm Rm running Office 2010 32-bit.