One operating system on a single hard drive.
One operating system on a single hard drive.
You're asking if you can transfer Windows 10 AME from your USB drive to a different partition on the same HDD, then reinstall it onto the 150GB drive and boot into Windows 10 AME. The 120GB and 150GB partitions are on the same device.
You can simply add 10 directly on top of the Win 7 partition. Or, when you start the boot from the media, remove all partitions and install 10 on one single partition.
Yes, it’s best to clear both partitions and use one large drive instead. During Windows 10 setup you get the option to remove all partitions, especially if you’re unsure about your data. If you don’t have any files on the drives, you can wipe them completely before installation for safety. Starting with a single partition gives you a clean slate.