Firstly, you need to be sure that the DVD or USB that you pick for the Windows 10 media does not have any important data. This is because during the process, you will lose all data. The drive needs to be of at least 4 GB capacity. You need to follow the below mentioned steps to make a bootable Windows 10 drive.
Download the Windows 10 media creation tool. For the sake of checking the type of Windows that you run one can go to Start> Control Panel > System and Security > System type. No,w launch the application. You need to choose create installation media for another PC and then click on Next. Choose the desired language. Make sure you choose USB flash drive and click on Next to following the remaining steps.
Once the Windows 10 media creation tool has done its job, you need to have Windows 10 bootable USB disk/ DVD drive, which depends on the type of option you choose.