How to install Mac os Big sur on MacBook Laptop with pendrive

How to install Mac os Big sur on MacBook Laptop with pendrive in Bangla # how to install mac os big sur any mac laptop your quries Install Big sur in macBook Pro install Bis sur on a macBook L aptop Facebook page Learn with Kajul https://www.facebook.com/profile.php?id=100089630231126&mibextid=ZbWKwL