# How to Deal with Multiplied Controls in Toolbox

## Environment

| Product Version | Product         | Author                                                                          |
| --------------- | --------------- | ------------------------------------------------------------------------------- |
| 2022.2.622      | UI for WinForms | [Desislava Yordanova](https://www.telerik.com/blogs/author/desislava-yordanova) |

## Description

A common case is to observe the Telerik controls displayed twice in the Visual Studio Toolbox:

![multiplied-controls-in-toolbox 001](https://www.telerik.com/products/winforms/documentation/assets/1705b15c38794796e8c8e7b1c49114cb/multiplied-controls-in-toolbox001.png)

## Solution

The first thing to try is to **reset** the Visual Studio **Toolbox** by right-clicking on it and selecting *Reset Toolbox* option. Alternatively, you can uninstall the Telerik UI for WinForms suite and [install](https://www.telerik.com/products/winforms/documentation/installation-and-upgrades/installing-on-your-computer) it again.

![multiplied-controls-in-toolbox 002](https://www.telerik.com/products/winforms/documentation/assets/bd21c7c0b4a0598fb934eadcde27816b/multiplied-controls-in-toolbox002.png)

Another approach is to:

1. Close all Visual Studio instances.
2. Open Windows Explorer and navigate to **%localappdata%\Microsoft\VisualStudio\15.0\_\<instanceID>** (e.g. VS 2017). Note that you might have several such folders according to the Visual Studio versions that are installed.
3. Make sure that the option '*Show hidden files, folders, and drives*' is selected in the Windows Explorer options.
4. Delete all \*.tbd files.
5. Start Visual Studio 2017 and check if the issue still persists.

If there is no Telerik controls in the toolbox please use [Toolbox Configuration Wizard](https://www.telerik.com/products/winforms/documentation/visual-studio-integration/visual-studio-extensions/toolbox-configurator) to set them.

## See Also

* [Adding RadControls to Visual Studio Toolbox in .NET Framework Projects](https://www.telerik.com/products/winforms/documentation/visual-studio-integration/adding-radcontrols-to-visual-studio-toolbox)
* [Adding RadControls to Visual Studio Toolbox in .NET Core Projects](https://www.telerik.com/products/winforms/documentation/core/core-toolbox-version)
* [Set Toolbox Version](https://www.telerik.com/products/winforms/documentation/visual-studio-integration/visual-studio-extensions/toolbox-configurator)