# How to CLEAN an OLD INSTALL

**URL:** <https://forum.mautic.org/t/how-to-clean-an-old-install/22325>\
**Category:** Mautic 4 Install/Upgrade Support\
**Created:** [January 13, 2022, 3:59pm UTC](https://forum.mautic.org/t/how-to-clean-an-old-install/22325 "2022-01-13T15:59:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Rich](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/rich/32/45_2.png) [@Rich](https://forum.mautic.org/u/Rich)\
**Post date:** [January 13, 2022, 3:59pm UTC](https://forum.mautic.org/t/how-to-clean-an-old-install/22325/1 "2022-01-13T15:59:17Z")

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**Your software** MAUTIC 3.3.3  
_My PHP version is_ : 7.2734  
_My MySQL/MariaDB version is_ (delete as applicable): MySQL/MariaDB version 10.3.32-MariaDB

**Updating/Installing Errors**  
_I am_ (delete as applicable): Installing  
_Upgrading/installing via_ (delete as applicable) : Command Line

_My problem is_ :

Hello: I have had an instance of Mautic running for about 3+ years now and have migrated through all the updates. I want to “clean house” and install a fresh instance of Mautic. No problems there.

The main reason is that there are broken bits lying around. Mainly around the themes, templates, contacts, and contact field data.

I can export and import to scrub the contacts but does anyone have a recommendation on the best way to migrate the segments, forms and campaigns… preserve contact history???

What might you recommend as a strategy and what might be some of the gatchya’s? I appreciate any input on this as I need to make sure it is right (obviously!).

Might the best approach be to scrub the contacts but then rebuild the templates, campaigns, custom fields manually?

Lastly: might it be better to install a new version of Mautic and connect it to the existing database?

Thought? Opinions?

Thanks, Rich

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**Author:** ![crozilla](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/crozilla/32/2054_2.png) [@crozilla](https://forum.mautic.org/u/crozilla)\
**Post date:** [April 3, 2022, 12:33am UTC](https://forum.mautic.org/t/how-to-clean-an-old-install/22325/2 "2022-04-03T00:33:56Z")

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I would like to know this, too. I have blown up my 4.1 version trying to update to 4.2.1 😡 and now want to start over fresh. Is there a way to install 4.2.1 fresh and import the data from my 4.1 database?

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**Author:** ![slavchob](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/slavchob/32/7468_2.png) [@slavchob](https://forum.mautic.org/u/slavchob)\
**Post date:** [August 6, 2022, 7:55pm UTC](https://forum.mautic.org/t/how-to-clean-an-old-install/22325/3 "2022-08-06T19:55:13Z")

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I am interested for the solution, too.