Updating 2015 and prior to 2015 Tax Programs

I had to re-install all Turbo Tax Years.  I can't update years 2015 and prior to 2015 years.  I get error code TT810.  How do I fix this?

Troubleshooting

Unfortunately there is no way to fix this as there is no new update for the older software. CRA wants the last 6 years saved. 

 

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