**We do not have any "trusted mirror".** All the unofficial sites are hosted without our knowledge nor authorization. These make use of a heavily modified version of our old code and may cause incorrect downloads. In addition, due to the way UUP dump is structured, it is extremely easy for these websites to inject malware in a non-obvious way.
The source code of the website has been made private due to the above concerns, as we do not wish to be liable for any damages caused by copies of UUP dump not hosted by us.
While the website code itself is no longer open source, many parts out of which it is made are.
## I want to retrieve some data from UUP dump in an automatic manner
For this purpose we host an official instance of the [UUP dump JSON API](https://git.uupdump.net/uup-dump/json-api). You can access it at https://api.uupdump.net.
For instruction how to use it, please refer to the documentation found in the repository.
* The conversion process did not report any errors
* The conversion was done on Windows, preferably a modern version
Including updates is crucial to receive a version selected on the website due to the way UUP sets are provided by Microsoft.
An UUP set consists of the base build (typically .1 for releases, .1000 for previews), and updates for it, which bring it up to the desired version. That means, if you fail to include these updates, you'll receive a base build, not the one you selected.
## Help! My Windows copy is missing "Windows Security" app or "Settings" app does not open.
This applies only to Windows 11, version 22H2 and later.
A cause of this is a failed conversion process or a conversion done on an unsupported platform. You'll need to redo the process and reinstall Windows to fix this.
Alternatively if you don't want to reinstall or can't, you may try one of the following steps.
### Fix not working "Settings" app or a missing "Microsoft Store" app
Open the Command Prompt as an administrator and type `wsreset -i`. The issue should be fixed in a few minutes.
### Fix missing "Windows Security"
Go to the UUP dump page for the build you installed and using the **Browse files** section search for `SecHealthUI`. Download and install that `appx` package to fix the issue.