| Quick Info | Details |
|---|---|
| Error Code | AMD Error 199 |
| Primary Cause | Signature verification failure or corrupted installation files. |
| Common Fix | Clean uninstall using AMD Cleanup Utility and Registry cleanup. |
| Difficulty | Intermediate |

What is AMD Error 199?
AMD Error 199 is a common installation issue encountered by users trying to update or install AMD Radeon Software. This error typically signifies that the installer cannot verify the digital signature of the driver components.
It often occurs when there are leftover files from previous driver versions or when Windows Update interferes with the installation process. It prevents the Adrenalin Edition software from completing the setup.
This error is frustrating because it often happens halfway through the installation. Understanding how to bypass the signature check or clean the environment is key to resolving it.
Step-by-Step Solutions
1. Use AMD Cleanup Utility
The first step is to remove any trace of old drivers that might be causing a conflict. Using the official cleanup tool is more effective than the standard Windows uninstaller.
Download the AMD Cleanup Utility from the official website. Run the tool and allow it to boot your PC into Safe Mode. It will remove all previous drivers and registry keys automatically.
2. Clear the AMD Installation Folder
Sometimes the installer tries to use cached files that are corrupted. You should manually clear the temporary extraction folder before trying again.
Navigate to your local disk (usually C:) and look for the folder named “AMD”. Delete this entire folder to ensure the installer extracts fresh files on the next attempt.
3. Repair System Files via Command Prompt
Corrupted Windows system files can sometimes prevent the driver signature from being validated correctly. You can fix this using the Deployment Image Servicing and Management (DISM) tool.
DISM.exe /Online /Cleanup-image /Restorehealth
sfc /scannow
Run these commands in a Command Prompt with Administrative privileges. Wait for the process to reach 100% and then restart your computer.
4. Disable Windows Update Driver Search
Windows Update often tries to install a “generic” version of the AMD driver while you are trying to install the official package. This creates a race condition that triggers Error 199.
Go to System Properties > Hardware > Device Installation Settings. Select “No” to prevent Windows from automatically downloading manufacturer apps and custom icons for your devices.
5. Registry Adjustment for Sub-key Verification
If the error persists, you may need to clear specific registry keys related to the installer’s state. Be careful when editing the registry.
Open Regedit and navigate to HKEY_LOCAL_MACHINE\SOFTWARE\AMD. Look for any sub-keys titled “CN” and ensure permissions are set to “Full Control” for your user account, or delete them if the installation is totally stuck.