> For the complete documentation index, see [llms.txt](https://help.besmart.software/one-installer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.besmart.software/one-installer/what-is-the-one-installer.md).

# What is the One Installer?

### **What is One Installer for?**

* One Installer is an app that allows you to select products you wish to install and then collectively installs them onto your computer.

### **Why are only some apps being shown?**

* One Installer scans your computer for installed programs, and based on this input, it selects applications that should be installed. You can always uncheck any of these suggested apps.

### **Why use the Advanced installation?**

* [Advanced Installation](/one-installer/advanced-installation.md) enables you to install any product in available version and provides an option to uninstall them as well. 

### Do I have to install the Installer first?

* No, it is portable so you can run it straight away as long as you have internet connection. See [System Requirements](/one-installer/system-requirements.md) for all details.