the folder options from the windows explorer was missing and
unable to show all the files including the hidden ones due to the recent virus attack.

So here’s what I did to restore it back:

Go to Run –>gpedit.msc
In that
User Configuration –> Administrative Templates –> Windows Components –> Windows Explorer

Enable and then Disable

“Removes Folder Options menu from Tools menu”

Close all windows explorer windows and then open again.. most probably your folder options is back