Turbotax 2021 it says it updates 100% then gives the message: "Failed to update. Microsoft Installer error:1603". Check for solution says there is none. What now?

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Turbotax 2021 it says it updates 100% then gives the message: "Failed to update. Microsoft Installer error:1603". Check for solution says there is none. What now?

See https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-delivery/error-1603-fatal-error-...

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