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Downgrading from windows 10 gone wrong (bootmgr is missing)
Hi all. So I was trying to deinstall windows 10 and install windows 7 of my Asus Vivobook S300C using this guide.
Everything worked fine until the "IMMEDIATELY Click Out On Top X, TERMINATE Installation Process and REBOOT." step. At this point I restarted the computer and continued through the installation process to the point where I was supposed be able to click "INSTALL NOW". Here I got the message
"A required CD/DVD drive device driver is missing. If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now. Note: If the Windows installation media is in the CD/DVD drive, you can safely remove it for this step." <Browse> <OK> <Cancel>.
After a bit of googling I found this site which suggested the problem might be caused by the fact I was using a USB 3.0 port. I indeed was using a USB3.0 port so I turned off the computer and put the USB drive in a 2.0 port instead. However, now when I turn on the computer I get the message "BOOTMGR is missing. Press Ctrl+Alt+Delete to restart". When I go into Bios the USB stick isn't even there in the boot options anymore (just the hard drive of the laptop).
I tried making a new bootable USB stick but still get the same problem. Any ideas as to why this could be?
Thanks in advance!
Last edited by IFTN; 22 Oct 2016 at 06:00.