Do not use third-party "driver updater" scams. Go directly to the Canon Europe or Canon USA support site. Search for "CanoScan 5600F." Download the 560F_Vista_64_11_3.exe (The last Vista 64-bit driver often works better than the Win7 version for legacy compatibility).
Plug the scanner into a native on the motherboard. canoscan 5600f driver windows 11
“Of course. It’s the official driver.” Do not use third-party "driver updater" scams