Download CCleaner here One user’s forum post said this, I’m getting this message when launching TurboTax 2020: 2020 TurboTax updater fails with Microsoft Installer error 1603. The above issue arises when Microsoft .NET Framework can’t apply an update. It can happen when users launch TurboTax and a dialog box pops up for updating the program. The update routine fails, and users can’t utilize TurboTax as a consequence.
How can I fix TurboTax error 1603?
1. Reinstall TurboTax
Some users have said reinstalling TurboTax resolved error 1603 for them. You can more thoroughly remove TurboTax with IObit Uninstaller. The IObit Uninstaller utility will erase leftover files and registry entries ensuring that the application is completely removed. The software also packs in some handy additional features. Its Software Updater tab displays a list of new updates for installed applications. Users can click the Update All button on that tab to update them. Furthermore, users can remove toolbars and plugins from browsers with IObit Unisntaller. Other IObit Uninstaller features:
The Install Monitor logs software installation system changes for IObit users IObit enables users to remove Windows updates This software includes a black theme It incorporates an all-in-one Software Health feature for system maintenance
2. Manually update TurboTax
Users can manually update TurboTax without launching the software. Applying manual updates has fixed the 1603 issue for some users. Open the Intuit TurboTax update page in a browser. Then you can download the latest R.22.0 update from there to install it.
3. Free up hard drive space
You can also free up hard drive space with third-party disk cleanup software. The best third-party disk cleanup utilities can free up more HDD space than Windows 10’s Disk Cleanup tool. ⇒ Get Fortect
4. Close background programs before launching TurboTax
5. Clean boot Windows
If clean booting fixes TurboTax error 1603 error 1603, you’ll need to identify and uninstall a conflicting program after restoring the original boot configuration.
6. Reinstall Microsoft Visual C++ runtime packages
7. Update Windows 10
The above resolutions have fixed the TurboTax error 1603 for numerous users. So, there’s a pretty good chance at least one of those resolutions will fix the issue for you. However, you can get in touch with TurboTax support via the Contact us page for that software if more potential fixes are needed.
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