Instructions To Fix Windows Error Code 1618 Another installation is already in progress. Complete that installation before ...
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About the Error

When running Setup to install Microsoft Office programs, this error occurs because Microsoft Windows Installer can only run one installation at a time, unless it is a nested installation.

Windows code 1618 - Read what really helps

The fix is simple: wait until the software which is currently installing finishes the process. Restart the computer if necessary, then install the next program.

To learn more about this error, please check out our Error Analyzer software.

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