Sounds like OS X is corrupted, or the hard drive is almost full.
-Which version of OS X?
-How much free space is left on the hard drive?
-Normally win.trojan.dialer and win.ircbot.netol are Windows viruses - do you have Windows installed in Boot Camp or Parallels/Fusion?
You could try to startup in safe mode, then download, install, and run Malwarebytes Anti-Malware for Mac to remove any malware, then restart.
is this any help to you with my ,i log on as normal , after 10 seconds it go back to log in, only start in safe mode
Crashed Thread: 3 Dispatch queue: com.apple.NSXPCConnection.user.809
OK, that looks fine then. You may want to visit an Apple Store in person if possible. It may be long and drawn out to give you the steps to correct the issue here.
Do you have a Time Machine or other backup? If so, you could startup to the Recovery partition and reinstall macOS Sierra over the top of your current install. That may fix the login issue without deleting anything or messing with the Boot Camp/Windows partition.
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