# Auto Numbering Wizard Stopped Functioning
**URL:** https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487
**Category:** Support
**Tags:** installation
**Created:** [January 19, 2024, 5:52pm UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487 "2024-01-19T17:52:10Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@jma](https://community.mp3tag.de/u/jma)
#### Post date: [January 19, 2024, 5:52pm UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/1 "2024-01-19T17:52:10Z")
Hi there,
Been using auto-numbering for many years (thank you for mp3tag, by the way, it's really useful). This week, though, the auto-numbering wizard has stopped functioning. The Wizard pops up but clicking OK doesn't produce any results. 🙁
I've uninstalled, reinstalled with no change. OS is Windows 10 Pro
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [January 19, 2024, 6:18pm UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/2 "2024-01-19T18:18:25Z")
Could you tell us what you expected to happen?
I just tried the very same settings on a number of files and the track number changed as expected, i.e. first file got 1 and the 13th 13.
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### Author:  [@jma](https://community.mp3tag.de/u/jma)
#### Post date: [January 19, 2024, 7:35pm UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/3 "2024-01-19T19:35:51Z")
Thanks. I expected it to do the same with one slight difference - I generally use the function to put a leading zero on tracks 1 to 9.
Up until a few days ago, clicking OK caused the wizard to close and the tracks to be numbered sequentially in the order they appear in the main window.
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### Author:  [@jma](https://community.mp3tag.de/u/jma)
#### Post date: [January 19, 2024, 7:41pm UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/4 "2024-01-19T19:41:18Z")
Uninstalled using Revo Uninstaller with an Advanced Scan.
Upon subsequent re-installation, the wizard now works.
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### Author:  [@MotleyG](https://community.mp3tag.de/u/MotleyG)
#### Post date: [January 19, 2024, 8:06pm UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/5 "2024-01-19T20:06:20Z")
> [@jma](#):
>
> Thanks. I expected it to do the same with one slight difference - I generally use the function to put a leading zero on tracks 1 to 9.
There are some audio file formats that do not accept leading zero. Like m4a for example.
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### Author:  [@jma](https://community.mp3tag.de/u/jma)
#### Post date: [January 19, 2024, 9:18pm UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/6 "2024-01-19T21:18:11Z")
Indeed, though this was every file of any type that the wizard didn't work for. No matter, all working now after a thorough deinstall & reinstall.
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### Author:  [@Lebon14](https://community.mp3tag.de/u/Lebon14)
#### Post date: [January 20, 2024, 3:05am UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/7 "2024-01-20T03:05:45Z")
I didn't know this existed because I use an "Action". If it breaks again, create a new "Replace with Regular Expression" action.
Field: `TRACK`
Regular expression: `^(\d)$`
Replaces matches with `0$1`
Just select all your tracks, execute that action and all of the tracks without leading zeroes now will. 🙂
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### Author:  [@jma](https://community.mp3tag.de/u/jma)
#### Post date: [January 20, 2024, 7:35am UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/8 "2024-01-20T07:35:14Z")
Thank you! I didn't know actions existed.
Every day's a school day.
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [January 20, 2024, 7:39am UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/9 "2024-01-20T07:39:19Z")
> [@Lebon14](#):
>
> Regular expression: `^(\d)$`
If you do not feel at home with regular expression, then an action of the type "Format value" for TRACK and
Format string: $num(%track%,2)
for 2 digits
or even
Format string: $num(%track%,3)
for 3 digits
would also add padding with zeros where required.
There are many ways to skin a cat.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 19, 2024, 7:40am UTC](https://community.mp3tag.de/t/auto-numbering-wizard-stopped-functioning/63487/10 "2024-02-19T07:40:00Z")
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