Facing problem with Windows Defender Update. I have tired various ways to fix it down, but no success. Is there anyone one who can help me to fix this issue?

I would be wary, since Android is common, and the virus might have a variant version? Here's what I would do: download a Linux ISO file (I would suggest Ubuntu) and make a bootable disk (or USB drive?). Boot to that, and then use the suspected USB drive, and copy the files you need to the hard driv...