This is where it gets tricky. Most PCI TV capture cards are . If you are running a 64-bit version of Windows 10 or 11, the original drivers likely won't work due to "Driver Signature Enforcement." The Workaround:
Install user software
You can boot Windows into a special mode that allows unsigned drivers, but this is a security risk. pcitvcapturecardlwpcitvfmdrivers
Download files only from trusted driver archives or the original manufacturer's legacy support page. Step 3: Manual Installation This is where it gets tricky