# Cannot install Shell extension because already installed

**URL:** https://community.mp3tag.de/t/cannot-install-shell-extension-because-already-installed/60565
**Category:** Support
**Tags:** installation
**Created:** [March 31, 2023, 7:59pm UTC](https://community.mp3tag.de/t/cannot-install-shell-extension-because-already-installed/60565 "2023-03-31T19:59:39Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [March 31, 2023, 8:06pm UTC](https://community.mp3tag.de/t/cannot-install-shell-extension-because-already-installed/60565/2 "2023-03-31T20:06:29Z")

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Could it be that you installed a 64-bit version over an existing 32-bit version?

See here for additional notes on installing the 64-bit version

> [@Notes on the 64-bit version of Mp3tag](https://community.mp3tag.de/t/notes-on-the-64-bit-version-of-mp3tag/57250):
>
> I've released a [64-bit version of Mp3tag](https://community.mp3tag.de/t/455) a few days ago and received a few questions about differences between the 32-bit version and the 64-bit version. To make it short, there should not be any noticeable differences except for two things: The 64-bit version uses 64-bits to address memory and is no longer limited to 2 GB per application. While the [Library](https://docs.mp3tag.de/customization/options/library) feature of Mp3tag is already a very viable solution for large libraries, loosening the memory restriction is one of the key benefits of …

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