What?? Someone logged in my pc?

[Its_shamnad]

This dialog box poped up when I'm tried to shut down.I'm not enabled microsoft remote desktop service. Also I dont have any other remote desktop software. What does it means?

[Robin]

Are there any other user accounts on the machine? Or just one?

[Jaker]

It means what it says

[Its_shamnad]

Are there any other user accounts on the machine? Or just one?

I've only one user account.

[Jaker]

Are there any other user accounts on the machine? Or just one?

I've only one user account.

Just shut the computer down

[Robin]

Are there any other user accounts on the machine? Or just one?

I've only one user account.

If it appears only once, just shut it down and don't worry.
If it happens sometimes and sometimes not, run an virus scan for the machine.
If it happens all the time, might be a Windows error, logout (not shutdown) and log back in to your account. And run a virus scan.

[Its_shamnad]

Are there any other user accounts on the machine? Or just one?

I've only one user account.

If it appears only once, just shut it down and don't worry.
If it happens sometimes and sometimes not, run an virus scan for the machine.
If it happens all the time, might be a Windows error, logout (not shutdown) and log back in to your account. And run a virus scan.

Yeah it's happens sometimes and I dont have an antivirus. But I dont think Its because of virus. Maybe..

[Robin]

I've only one user account.

If it appears only once, just shut it down and don't worry.
If it happens sometimes and sometimes not, run an virus scan for the machine.
If it happens all the time, might be a Windows error, logout (not shutdown) and log back in to your account. And run a virus scan.

Yeah it's happens sometimes and I dont have an antivirus. But I dont think Its because of virus. Maybe..

As I said, run a virus scan, it's quite stupid to not have an antivirus unless you're an advanced user.
I recommend AVG, but install what you prefer.

[Zoroark]

I know advanced users who have antivirus because they are too lazy to constantly check all their files for suspicious activity.

Get a malware scanner too like spybot search and destroy for example