Try disabling all other applications that you don’t use This is an unusual error, but there are few workarounds that you can try out.
DISKPART CLEAN DISK ACCESS DENIED INSTALL
Media Creation Tool allows you to download and move your Windows 10 ISO file to a USB flash drive or DVD so you can easily install it, but sometimes when moving your ISO file to a USB flash drive you can get an Access denied error. Media Creation Tool does not recognize USB – If Media Creation Tool won’t even recognize your drive, you might be able to fix this problem simply by formatting the USB drive.Media Creation Tool error USB – Errors with USB are relatively common, and if you’re having these issues, be sure to check if your USB drive is working in read-only mode.
Even though Media Creation Tool is simple to use, users reported the following problems: One of the easiest ways to create an installation media is to use Media Installation Tool. Home › Fix › Windows 10 › Errors › Access denied on Windows 10 ISO to USB