psexec by sysinternals

i am continuing a project i posted about here previously and having a problem with psexec.exe

i continue to get a access is denied error connecting to the remote computer

please help
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DavidAuthor Commented:
i am using the following command

psexec \\ -u user -p password nc.exe

it is a windows 8.1 system (both machines)

windows firewall is turned off on both
Is Remote desktop enabled on that computer?
DavidAuthor Commented:
i enabled remote desktop ( it was off) and it still denies me
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I am not familiar with W8.
Can you open \\\c$ in Windows Explorer?
DavidAuthor Commented:
pjam, yes i can
DavidAuthor Commented:
pjam, my error , no i can't
I don't think remote desktop requires reboot, but worth a try.
What has remote d. to do with psexec?
The access denial to c$ is your problem. You need two things: an administrative account (admin on the remote system) and port 445 open on the remote system, so try
telnet 445
(might require to install telnet client first ->windows feature)

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I agree with McKnife here. There is no relation between Remote Desktop and Psexec.
Can you please make sure that you can access the remote computer on TCP port 445.
And fyi: enabling remote desktop does not require a reboot.
Patrick GohEngineerCommented:
McKnife is right.

"PsExec works on remote systems only if it runs within an account that has administrator group membership on the remote system."
PsExec does work by creating a temporary Windows service on the remote system.
(that's why you also need the admin permissions)
Keep in mind that on slow/unresponsive servers or servers with a problem the service can sometimes stay behind.
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Windows 8

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