cpaccel has encountered a problem and needs to close

Question ID: 10953
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I just installed the vMatrix server manager 2.3.1 on an fresh installed Windows 10 pro build 1903 without any anti-virus or windows firewall software activated. After the installation i allowed cpaccel.exe in the firewall, restarted the computer, but still get the error “cpaccel has encountered a problem and needs to close”. I also see that i can’t see the client desktops in the vMatrix server. p.s. when i run the diagnostic tool, it doesn’t give me any errors. Please help.

RESOLVED
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Posted by (Questions: 1, Answers: 1)
Asked on July 11, 2019 12:03 pm
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Private answer

The cause of this problem is that the system blocked the driver installation for security concern.
Please follow these steps to fix:
1, Disable "WDD graphics display driver for remote desktop sessions" through the Group Policy editor
-- press "Win + R" to run "gpedit.msc" to open the editor -> check down to find the option through the path of "Computer Configuration" ->
"Administrative Templates" -> "Windows Components" -> "Remote Desktop Services" -> "Remote Desktop Session Host" -> "Remote Session Environment" -> right click the option "Use WDD graphics display driver for remote desktop sessions" to disable it.

2, Disable the BIOS security boot
-- press to enter BIOS setup -> search for the option of "Security Boot" and disable it.

3, Reinstall vMatrix Server Manager

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Posted by (Questions: 0, Answers: 1)
Answered on July 11, 2019 12:07 pm
Thank you for the support. It worked!
( at July 11, 2019 3:04 pm)