Not to be mean, but everything above is total bullshit. (Except restarting your PC, if you're lucky)
Hack shield/Engine is seeing some kind of debugging type program. If you have run anything that IS a debugger/disassembler recently, go into task manager and make sure it closed properly and isn't still running.
Also, there is an off chance it is seeing your AV scan CA files and it throws up a 'red flag' so to speak, thinking it's a debugger. Disable anything that scans files automatically while playing combat arms.