Microsoft Installer Error 1648

vtf615 — Sat, 04 Apr 2026 17:52:51 GMT

I am currently getting Microsoft Installer Error 1648 when I start the TurboTax 2025 desktop program. As a result, I am unable to efile any returns. It seems that my state program updates happened ok but not the main program updates. I have ended my antivirus software, restarted my computer, run Turbotax 2025 as an administrator and none of these actions helped. I tried to uninstall the program but it gives me the same message - "No valid sequence could be found for the set of patches." and the program does not uninstall. Has anyone else had this problem and been able to find a solution? Thank you.

Re: Microsoft Installer Error 1648

Mike9241 — Sat, 04 Apr 2026 19:03:13 GMT

see this blog from Microsoft. The issue can be a Windows issue or a TurboTax issue, perhaps both.https://www.bing.com/search?q=Microsoft+Installer+Error+1648&form=ANNNB1&refig=69d1492875ee40bb85ffba455b44f6da&pc=EDBBAN&adppc=EDGEDSP

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Microsoft Installer Error 1648

Re: Microsoft Installer Error 1648