Returns We do not accept returns on open software products. Orders placed and paid for after 4pm or over the weekend or on holidays will normally be dispatched the following working day. Shipping Fast and free delivery to anywhere in the world Orders placed and paid for by 4pm will normally be sent the same day. You save time and potential Data charges associated with (possibly repeated) downloads of the 6GB+ file. It also allows installation on recent Apple hardware that lacks a DVD drive. This medium is the best option if you want to have a copy of the operating system saved for any future additional installations or recovery of existing installations or if you wish to easily install on several computers. The charge is for the new USB Drive the time to pre-install the OS X installer on it, plus post sales support and postage/packaging. No charge is being made for the system software itself. Important Notice: This Apple OS X software is FREE to download from the Apple App store using the App Store program supplied by Apple starting with OS10.6 (Snow Leopard). As soon as you hear the startup chime press and hold the option key on your keyboard. Installation Instructions:Insert the USB in your USB Slot. Please be patient and allow the process plenty of time to finish.

This USB can be used to install a clean copy of Apple macOS Big Sur or to update your existing system to OS X Catalina Installing, Recovering or upgrading your software from a USB is NOT a quick process and can take 30-45 minutes to complete.

Mac os big sur usb installer