After the installer says "Driver Installed Successfully," you need to confirm Windows recognized the port.
These drivers are not natively in Windows 11. They are also often unsigned or use deprecated signing methods. usb to ttl driver windows 11 upd
The budget king. Found on countless inexpensive Arduino clones and USB adapters from Amazon/eBay. They work remarkably well once the correct driver is installed, but Windows 11’s driver signature enforcement can cause issues. usb to ttl driver windows 11 upd
Look for the hardware label or notice any yellow exclamation marks. Common Chipsets PL2303 issues (Prolific USB to Serial Drivers) Win 11 usb to ttl driver windows 11 upd