Tkwn-dmwak-mn-ajly [ Desktop ]

a(1)-5=-4→22=v j(10)-5=5=e l(12)-5=7=g y(25)-5=20=t → vegt

Try instead: (i.e., code was shifted -1 from plaintext). tkwn-dmwak-mn-ajly

But maybe the key is different. Try (A↔Z, B↔Y, etc.)? Atbash of t = g , k = p — not matching common words. etc.)? Atbash of t = g