Upload fails: "GetFileAttributesEx C:\Users\sstsmrsm\Desktop\sketch_oct29c\sketch_oct29c.ino: The system cannot find the file specified"

Arduino: 1.8.4 (Windows 7), Board: "Arduino/Genuino Uno"

GetFileAttributesEx C:\Users\sstsmrsm\Desktop\sketch_oct29c\sketch_oct29c.ino: The system cannot find the file specified.

Error compiling for board Arduino/Genuino Uno.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

@huzaima

Some common causes:-

Over aggressive anti virus or similar
Lack of user permissions.
Actual virus or similar.
Incorrect sketch location or changed during IDE use.

Please rule those out first and use THIS POST as a guide to any extra information you can provide.

Bob.