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memtest86plus / windows-installer

Windows USB Installer for Memtest86+
GNU General Public License v2.0
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Unable to select usb in windows installer #3

Closed lhwn5407 closed 2 years ago

lhwn5407 commented 2 years ago

This issue was copied from the Memtest86 Plus project. https://github.com/memtest86plus/memtest86plus/issues/181

Version : Memtest86+ 6.00 beta 3 Platform : windows 10 pro 21H2 19044.2006

The windows installer of memtest86+ does not recognize a 32GB USB formatted in fat32. I tried:

Since the same USB is recognized by rufus, I do not think it is a problem with my computer or a problem with the USB. I hope the screenshots are helpful.

image

lhwn5407 commented 2 years ago

After many tries, I found out about RMB (Removable Media Bit). RMB is used by Windows to determine whether the storage device is removable or fixed. The two SanDisk usbs I had were for some reason all marked as fixed storage (RMB = 0), so Memtest86plus windows installer didn't show my usb in the usb list. My other 8GB usb had RMB=1 and it worked fine.

x86fr commented 2 years ago

This is the intended behavior. An USB non-removable Media is not suitable for a tool like Memtest86+. The risk is to accidentally erase important data.