# What applet is missing when I try to select hotcorner 'expose all windows'?

**URL:** <https://discourse.ubuntubudgie.org/t/what-applet-is-missing-when-i-try-to-select-hotcorner-expose-all-windows/1272>\
**Category:** Budgie Applets\
**Created:** [November 22, 2018, 2:44pm UTC](https://discourse.ubuntubudgie.org/t/what-applet-is-missing-when-i-try-to-select-hotcorner-expose-all-windows/1272 "2018-11-22T14:44:56Z")\
**Posts on this page:** 7\
**Page:** 2

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**Author:** ![shawn1thompson](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.ubuntubudgie.org/shawn1thompson/32/2993_2.png) [@shawn1thompson](https://discourse.ubuntubudgie.org/u/shawn1thompson)\
**Post date:** [March 8, 2022, 12:31am UTC](https://discourse.ubuntubudgie.org/t/what-applet-is-missing-when-i-try-to-select-hotcorner-expose-all-windows/1272/21 "2022-03-08T00:31:58Z")

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I don’t have that. Do I need to install it?

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**Author:** ![fossfreedom](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.ubuntubudgie.org/fossfreedom/32/1405_2.png) [@fossfreedom](https://discourse.ubuntubudgie.org/u/fossfreedom)\
**Post date:** [March 8, 2022, 7:13am UTC](https://discourse.ubuntubudgie.org/t/what-applet-is-missing-when-i-try-to-select-hotcorner-expose-all-windows/1272/22 "2022-03-08T07:13:28Z")

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It is installed automatically with Ubuntu Budgie unless you did a minimal install.

Look for budgie previews via budgie welcome - software - budgie extras

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**Author:** ![shawn1thompson](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.ubuntubudgie.org/shawn1thompson/32/2993_2.png) [@shawn1thompson](https://discourse.ubuntubudgie.org/u/shawn1thompson)\
**Post date:** [March 8, 2022, 3:51pm UTC](https://discourse.ubuntubudgie.org/t/what-applet-is-missing-when-i-try-to-select-hotcorner-expose-all-windows/1272/23 "2022-03-08T15:51:19Z")

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I did a minimal install. Also, it looks like you’re talking about the Previews applet which doesn’t resolve the issue.

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**Author:** ![vlijm](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.ubuntubudgie.org/vlijm/32/34_2.png) [@vlijm](https://discourse.ubuntubudgie.org/u/vlijm)\
**Post date:** [March 8, 2022, 3:57pm UTC](https://discourse.ubuntubudgie.org/t/what-applet-is-missing-when-i-try-to-select-hotcorner-expose-all-windows/1272/24 "2022-03-08T15:57:34Z")

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Previews is no longer an applet, but a mini-app, also in 21.10. If you activate it, the message goes away and hotcorners performs the action.

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**Author:** ![shawn1thompson](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.ubuntubudgie.org/shawn1thompson/32/2993_2.png) [@shawn1thompson](https://discourse.ubuntubudgie.org/u/shawn1thompson)\
**Post date:** [March 8, 2022, 4:21pm UTC](https://discourse.ubuntubudgie.org/t/what-applet-is-missing-when-i-try-to-select-hotcorner-expose-all-windows/1272/25 "2022-03-08T16:21:44Z")

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I’ve installed the Previews mini app from Budgie Extras, but Expose isn’t working and I get the message about a missing process if I change the Hot Corner action. I logged out, but that didn’t seem to help.

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**Author:** ![fossfreedom](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.ubuntubudgie.org/fossfreedom/32/1405_2.png) [@fossfreedom](https://discourse.ubuntubudgie.org/u/fossfreedom)\
**Post date:** [March 8, 2022, 4:24pm UTC](https://discourse.ubuntubudgie.org/t/what-applet-is-missing-when-i-try-to-select-hotcorner-expose-all-windows/1272/26 "2022-03-08T16:24:32Z")

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Look for previews control in your menu - run the app and tick the checkbox to activate it.

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**Author:** ![shawn1thompson](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.ubuntubudgie.org/shawn1thompson/32/2993_2.png) [@shawn1thompson](https://discourse.ubuntubudgie.org/u/shawn1thompson)\
**Post date:** [March 8, 2022, 4:26pm UTC](https://discourse.ubuntubudgie.org/t/what-applet-is-missing-when-i-try-to-select-hotcorner-expose-all-windows/1272/27 "2022-03-08T16:26:59Z")

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Finally! Thank you! Preview Controls shows up in the menu after installing the mini app. Much appreciated!

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