1. Uninstall SYC 2: open Programs and features, find SYC 2 and then click Uninstall.
2. In Programs and features search for iTunes, if it's there – click Uninstall.
3. Repeat Step 2 for Bonjour, Apple software update, Apple mobile device support, Apple application support both versions (32-bit and 64-bit). This means uninstalling them.
4. Even if iTunes was installed before – install it from scratch. Download it from apple.com if needed.
1. Install SYC 2 again from here: https://softorino.com/youtube-converter/download/
If iTunes was not installed in Step 4 – SYC 2 will ask for essential drivers installation process – you must allow this so click Accept.
6. Open SYC 2, connect the iOS device, tap Trust on it and wait for a while.