Failed to load KTaskExplorer driver, v1.7.x

[wildfrontier]

v1.7.1

v1.7.0

[DavidXanatos]

"verify time out" indicates that some 3rd party security software is interfering with the secure process creation,
what such software have you running on your system?

[wildfrontier]

"verify time out" indicates that some 3rd party security software is interfering with the secure process creation, what such software have you running on your system?
Trellix Endpoint Security 10.7.19 is running without alerts, and TaskExplorer v1.6.6 is OK.

With Trellix disabled, TaskExplorer v1.7.x is running without 'Failed to load KTaskExplorer driver' warning, and the title bar are as follows:
v1.7.1

v1.7.0

[DavidXanatos]

Well you found the issue, what's happening is:
Trellix wants to open a handle from userspace to TaskExplorer.exe before the process creation callback for the TaskExplorer.exe fired.
In this case from the ObCallback we try to do the missing initialization work for TaskExplorer.exe for this we need to open its file to hash it etc...
That operation seams also being blocked by Trellix until it times out, at which point the ObCallback is allowed to continue but since we don't know if TaskExplorer.exe is signed or not we allow the handle creation, and mark the process as not trustworthy as it may have been manipulated.

you can set in TaskExplorer.ini
[OptionsKSI]
ClientProcessProtectionLevel=6

and use DbgView from sysinternals to capture a verbose log of that is happening.