# Anki windows install not properly upgrading previous versions

**URL:** <https://forums.ankiweb.net/t/anki-windows-install-not-properly-upgrading-previous-versions/71119>\
**Category:** Help\
**Created:** [September 17, 2026, 5:36pm UTC](https://forums.ankiweb.net/t/anki-windows-install-not-properly-upgrading-previous-versions/71119 "2026-09-17T17:36:13Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![abdo](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/abdo/32/654_2.png) [@abdo](https://forums.ankiweb.net/u/abdo)\
**Post date:** [September 17, 2026, 5:46pm UTC](https://forums.ankiweb.net/t/anki-windows-install-not-properly-upgrading-previous-versions/71119/3 "2026-09-17T17:46:52Z")

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> [@dburrell](#):
>
> I noticed every version of Anki; 26.5, 26.8, 26.9 are still installed after an upgrade using the new msi installer.

Do you have Anki installed to `C:\Program Files\Anki`? There’s a known issue here that will be fixed in the next patch release.

See [Anki 26.09.2 won't start — AttributeError: module 'charset\_normalizer.md'](https://forums.ankiweb.net/t/anki-26-09-2-wont-start-attributeerror-module-charset-normalizer-md/71074)

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