I'm deleting my Windows 10 update and want to perform a clean installation. Like many others, I'm going to install it from my usb drive. I've the iso and using Rufus to create the bootable drive. Well, my question is which file system I'll choose to format it before burning? I watched a video on youtube where the guy used NTFS but didn't say anything about it. But I want to keep it in FAT32. Is it really necessary to use NTFS?
That depends on the size of your .iso if it is below 4 GB then you can proceed with FAT32 but if it is greater than 4 GB you should format it using NTFS.
This is because FAT32 only supports individual files up to 4GB in size and volumes up to 2TB in size,while NTFS has much higher theoretical limits.