Can I downgrade 64bit to 32bit?

Nope you can’t upgrade/downgrade between any OS that is not the same architecture. You do not have to purchase another license the Windows Key is for either 64/32bit you just need to find your own install media and use the key on the case. You would have to use 32 bit media to install the OS back on to the device.

Which Windows 10 is better 32bit or 64bit?

Windows 10 64-bit is recommended if you have 4 GB or more RAM. Windows 10 64-bit supports up to 2 TB of RAM, while Windows 10 32-bit can utilize up to 3.2 GB. The memory address space for 64-bit Windows is much larger, which means, you need twice as much memory than 32-bit Windows to accomplish some of the same tasks.

Can I downgrade Windows 10 64bit to 32bit?

The only way to go from the 64bit version of Windows 10 to the 64bit version is to backup your data ad clean install the 32bit version. You can reinstall Windows 10 at any time and it will not cost you anything !

Can I downgrade Windows 7 64bit to 32bit?

You must completely reinstall to change from 64bits to 32bits. It requires a custom installation of Windows. You cannot just leave the 64 bit stuff.

Can you install 32-bit Windows on 64 bit?

Generally speaking, 32-bit programs can run on a 64-bit system, but 64-bit programs will not run on a 32-bit system. While it is possible to install a 32-bit operating system on a 64-bit system, it is best to install a 64-bit version if possible.

How can I change my Windows 10 32-bit to 64 bit without formatting?

Important:

Launch it.
Select ISO Image.
Point to the Windows 10 ISO file.
Check off Create a bootable disk using.
Select GPT partitioning for EUFI firmware as the Partition scheme.
Choose FAT32 NOT NTFS as the File system.
Make sure your USB thumbdrive in the Device list box.
Click Start.