I cannot start Themler in Windows 10

martin.baumann
5 Posts
martin.baumann posted this 15 April 2022

I just bought Themler and I cannot start it, Have Firefox and Chrome installed.
Any Ideas?

I just bought Themler and I cannot start it, Have Firefox and Chrome installed. Any Ideas?
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9 Comments
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Support Team
Support Team posted this 15 April 2022

Hello,

There are several options to work with Themler.
1. Download Themler desktop. It installs own localhost with CMS's.
2. Download default Themler theme and work at it on your localhost with the preferred CMS or hosted website. For this you need to install it in CMS and activate the theme.
Both Themler for Windows and default Themler theme for your CMS can be downloaded from https://themler.io/download

Just log in to use Themler.

Sincerely,
Nettie

Hello, There are several options to work with Themler. 1. Download Themler desktop. It installs own localhost with CMS's. 2. Download default Themler theme and work at it on your localhost with the preferred CMS or hosted website. For this you need to install it in CMS and activate the theme. Both Themler for Windows and default Themler theme for your CMS can be downloaded from https://themler.io/download Just log in to use Themler. Sincerely, Nettie
martin.baumann
5 Posts
martin.baumann posted this 15 April 2022

This is absolutely not helping! I installed the Themler Desktop and I crashes at startup, see my Themler-error.txt file please.

This is absolutely not helping! I installed the Themler Desktop and I crashes at startup, see my Themler-error.txt file please.
Support Team
Support Team posted this 18 April 2022

Hello,

Please follow the steps below:
1. Backup all theme folders somewhere on your computer if there are any. The path is shown in the Theme Management screen after selecting some CMS, for example, C:\ProgramData\Themler\hd_data\themler_xxxxxxxxx\wordpress.
2. Uninstall Themler completely and also check the box for "Remove all CMS content".
3. Check if the following folders are still present:

C:\Program Files (x86)\Themler
C:\ProgramData\Themler

4. If they exist, remove them.
5. Reboot the machine after uninstalling Themler, so that all Themler services are removed for sure.
6. Temporarily disable antivirus and firewall.
7. Download latest version of Themler for Windows from themler.io, install it and try to start with Themler for any CMS and create a theme.
Please let us know the result.

Sincerely,
Nettie

Hello, Please follow the steps below: 1. Backup all theme folders somewhere on your computer if there are any. The path is shown in the Theme Management screen after selecting some CMS, for example, `C:\ProgramData\Themler\hd_data\themler_xxxxxxxxx\wordpress`. 2. Uninstall Themler completely and also check the box for "Remove all CMS content". 3. Check if the following folders are still present: C:\Program Files (x86)\Themler C:\ProgramData\Themler 4. If they exist, remove them. 5. Reboot the machine after uninstalling Themler, so that all Themler services are removed for sure. 6. Temporarily disable antivirus and firewall. 7. Download latest version of Themler for Windows from themler.io, install it and try to start with Themler for any CMS and create a theme. Please let us know the result. Sincerely, Nettie
martin.baumann
5 Posts
martin.baumann posted this 20 April 2022

Unfortunately still the same error. Themler wont start.

Unfortunately still the same error. Themler wont start.
Support Team
Support Team posted this 21 April 2022

Hello,

Looks like there is some setting on the machine that causes the issue in the process of installing:
"Unable to unzip C:/ProgramData/Themler/cms_data/startup.zip
Fenster kann nicht auf die angegebene Zeilen- und Spaltenanzahl gesetzt werden."

We haven't come accross this issue before. We can assume it to be related either to rights or to memory issues. What we can suggest is to try the second way.
Please consider using default Themler theme or another Themler themein your CMS on localhost or hosted website. The additional bonus will be the ability to deal with the real CMS content separate for each website. For this please choose and download default theme for your CMS on our Download page and follow installation steps in our Docs or a video instruction.

Sincerely,
Nettie

Hello, Looks like there is some setting on the machine that causes the issue in the process of installing: "Unable to unzip C:/ProgramData/Themler/cms_data/startup.zip Fenster kann nicht auf die angegebene Zeilen- und Spaltenanzahl gesetzt werden." We haven't come accross this issue before. We can assume it to be related either to rights or to memory issues. What we can suggest is to try the second way. Please consider using default Themler theme or another Themler themein your CMS on localhost or hosted website. The additional bonus will be the ability to deal with the real CMS content separate for each website. For this please choose and download default theme for your CMS on our Download page and follow installation steps in our Docs or a video instruction. Sincerely, Nettie
anijacka
1 Posts
anijacka posted this 18 February 2023

Hello,

After installing Themler for desktop on 18 februari 2023, same error as above still nobody has an answer about this "Unable to unzip C:/ProgramData/Themler/cms_data/startup.zip"

Sincerely,
Jack

Hello, After installing Themler for desktop on 18 februari 2023, same error as above still nobody has an answer about this "Unable to unzip C:/ProgramData/Themler/cms_data/startup.zip" Sincerely, Jack
Support Team
Support Team posted this 21 February 2023

Hello,

I have just checked the fresh installation of Themler desktop for Windows and couldn't reproduce the issue. Looks like there is some local issue. Please try following the suggestions in this topic in the posts above: first about complete reinstallation, then relating checking memory and permissions.

Sincerely,
Nettie

Hello, I have just checked the fresh installation of Themler desktop for Windows and couldn't reproduce the issue. Looks like there is some local issue. Please try following the suggestions in this topic in the posts above: first about complete reinstallation, then relating checking memory and permissions. Sincerely, Nettie
alexarafatonline
87 Posts
alexarafatonline posted this 24 September 2025

I had a similar issue when trying to run Themler. After trying a few things, I realized that it could be a compatibility issue with the browser or some extensions. I uninstalled and reinstalled Themler and made sure both Firefox and Chrome were up to date. I also cleared my browser cache and disabled unnecessary extensions. That seemed to do the trick!

It’s kind of like when I had to adjust some settings for Truckers of Europe 3 Apk on my phone. It’s a modified version developed by Wanda Software, and once I had everything set up correctly, I was able to enjoy all the premium features unlocked and feel like I was truly driving through Europe!

I had a similar issue when trying to run Themler. After trying a few things, I realized that it could be a compatibility issue with the browser or some extensions. I uninstalled and reinstalled Themler and made sure both Firefox and Chrome were up to date. I also cleared my browser cache and disabled unnecessary extensions. That seemed to do the trick! It’s kind of like when I had to adjust some settings for [Truckers of Europe 3 Apk][1] on my phone. It’s a modified version developed by Wanda Software, and once I had everything set up correctly, I was able to enjoy all the premium features unlocked and feel like I was truly driving through Europe! [1]: https://truckersofeuropeapk.com/
pvcmloza
115 Posts
pvcmloza posted this 10 November 2025

If you’re having trouble starting Themler, it might help to check your browser settings or try clearing cache and cookies, as browser conflicts sometimes prevent apps from launching. While troubleshooting, you can also explore the teaching feeling APK game, a mobile game that runs smoothly on most devices online game . It’s designed for quick startup and immersive gameplay, offering fun challenges without technical hiccups, making it a great alternative for gaming on the go.

If you’re having trouble starting Themler, it might help to check your browser settings or try clearing cache and cookies, as browser conflicts sometimes prevent apps from launching. While troubleshooting, you can also explore the teaching feeling APK game, a mobile game that runs smoothly on most devices [online game][1] . It’s designed for quick startup and immersive gameplay, offering fun challenges without technical hiccups, making it a great alternative for gaming on the go. [1]: https://teachingfeeling.org/
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