how to reset my iphone 12 passcode from laptop

Read again -> Related Article -> (< iOS 15.2) ->: If you forgot your iPhone passcode: If you forgot your iPhone passcode

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Step 1: Make sure that you have a computer (Mac or PC)

This process requires a Mac or PC. If you're using a PC, make sure that it has Windows 10 or later, and that iTunes is installed. You also need the cable that came with your iPhone, or another compatible cable, to connect your iPhone to the computer.

If you don't have a computer and you can't borrow one, you need to go to an Apple Retail Store or Apple Authorized Service Provider for help.

If your iPhone running iOS 15.2 or newer, you don't need a computer, see -> If you see an iPhone or iPad unavailable message or Security Lockout screen

If you see an iPhone or iPad unavailable message or Security Lockout screen - Apple Support

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Windows, Windows 6

Do you still use Windows 6?

Windows 6 is Windows OS Vista (Januari 2007) is an outdated OS, is an unsupported version of Windows

Microsoft say goodbye to Vista in 2017.