Download NalFix Anti-Cheat Software & Programming Anti-Cheat Bypass NalFix – Fix “Device\Nal in use.”
Device\Nal is already in use.
error in kdmapper.
The issue is, that the service can have diferent names on different configurations, I’ve seen it being named Nal, iqservice, iqwve64, … and sometimes when kdmapper fails to unload the vulnerable driver, it ends up as a service that launches on Boot with a random name.
The way this tool works is by iterating over all Kernel services, getting the Binary path and scanning each binary for the Device\Nal string. I didn’t find a better way to associate a symbolic link to a service, maybe I missed something, but it works.