# How to clean up nextcloud-data/appdata\_\* and /updater-\*

**URL:** <https://help.nextcloud.com/t/how-to-clean-up-nextcloud-data-appdata-and-updater/123746>\
**Category:** ℹ️ Support\
**Created:** [September 15, 2021, 8:26pm UTC](https://help.nextcloud.com/t/how-to-clean-up-nextcloud-data-appdata-and-updater/123746 "2021-09-15T20:26:28Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![gas85](https://help.nextcloud.com/user_avatar/help.nextcloud.com/gas85/32/7772_2.png) [@gas85](https://help.nextcloud.com/u/gas85)\
**Post date:** [September 20, 2021, 11:46am UTC](https://help.nextcloud.com/t/how-to-clean-up-nextcloud-data-appdata-and-updater/123746/4 "2021-09-20T11:46:55Z")

</div>

Just check what kind of app is consuming so much and optimize (e.g. for [Preview App](https://github.com/rullzer/previewgenerator/issues/94)) or remove it. For me previews are most biggest folder, but it is already [much smaller than before](https://help.nextcloud.com/t/gallery-app-not-using-previews-generated-by-preview-generator/21137/7).

```auto
du -h -d 1 /var/nextcloud/data/appdata_xxxxxxxxxxxx/
64K /var/nextcloud/data/appdata_xxxxxxxxxxxx/external
177M /var/nextcloud/data/appdata_xxxxxxxxxxxx/ocr
31M /var/nextcloud/data/appdata_xxxxxxxxxxxx/facerecognition
24K /var/nextcloud/data/appdata_xxxxxxxxxxxx/cms_pico
204K /var/nextcloud/data/appdata_xxxxxxxxxxxx/theming
148K /var/nextcloud/data/appdata_xxxxxxxxxxxx/identityproof
15G /var/nextcloud/data/appdata_xxxxxxxxxxxx/preview
8.0K /var/nextcloud/data/appdata_xxxxxxxxxxxx/dashboard
1.3M /var/nextcloud/data/appdata_xxxxxxxxxxxx/dav-photocache
1004K /var/nextcloud/data/appdata_xxxxxxxxxxxx/avatar
620K /var/nextcloud/data/appdata_xxxxxxxxxxxx/js
3.5M /var/nextcloud/data/appdata_xxxxxxxxxxxx/appstore
8.0K /var/nextcloud/data/appdata_xxxxxxxxxxxx/richdocuments
12K /var/nextcloud/data/appdata_xxxxxxxxxxxx/text
1.2M /var/nextcloud/data/appdata_xxxxxxxxxxxx/css
15G /var/nextcloud/data/appdata_xxxxxxxxxxxx/

```

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_[View the full topic](https://help.nextcloud.com/t/how-to-clean-up-nextcloud-data-appdata-and-updater/123746)._