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Starting from scratch but with old DB


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Is it possible to run the upgrade script on an old database to update it to v5, but also start with a fresh installation of the files? ie. I want the new interface without any of my old customisations but don't want to lose any of the data in the old database?


Is it simply a matter of deleting all the old files (except for the config file), copying all the new files into the directory, and then running the upgrade script?

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You should first change your WHMCS template setting in Setup > General Settings to "default". You can then delete all the old files except the following:


  • configuration.php
  • /images/logo.jpg




  • /attachments/ -> Preserves any attachments
  • /downloads/ -> Preserves any existing downloads
  • /templates/<active_template>/invoicepdf.tpl -> Preserves your PDF invoice customisations
  • /templates/<active_template>/quotepdf.tpl -> Preserves your PDF quote customisations


Then upload the new files (excluding the above files) to your whmcs directory and run the upgrade script to update the DB. You will then be upgraded with a clean set of files.


If you have customised your WHMCS admin folder name, you should rename the admin folder in the new files to match.


If your customisations in invoicepdf.tpl are from the older TCPDF version, you may even need to check for compatibility of the same.

Edited by Vijay
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