It is recommended to uninstall previous graphics drivers before installing the new ones to avoid conflicts. AMD Radeon™ HD 7450M Drivers and Downloads
You can find the official drivers at the AMD Radeon HD 7450M Support Page . Select your OS to see the available options: amd radeon hd 7450m skachat draiver
The is a legacy graphics card, and its drivers are primarily available as final "legacy" releases from 2015 and 2016. Because this product is no longer receiving updates, you should download the official final version for your specific operating system. Official AMD Driver Downloads It is recommended to uninstall previous graphics drivers
or Catalyst 15.7.1 WHQL are also the final options for these systems. Alternative Sources amd radeon hd 7450m skachat draiver