If you have installed the CE & .exe installer, the Robot will not be listed in Services but it is running under the User session(in user-mode).
Usually you get this error if the Robot credentials you’ve set in Orchestrator are wrong. Please double check them. For the exact Username you can open a Command prompt and type: whoami . For the password, make sure you type it correctly.
Anil_G
ashokkarale
jinal.shah
Gautham_Pattabiraman
postwick
chandreshsinh.jadeja
vrdabberu
Ajay_Mishra
sven.wullum1
Vyshnavi_Nalumachu