Change auditor agent service getting disabled

Hi Experts,

We have installed Change Auditor agents on multiple workstations and most of the workstation agents are getting disabled after few hours of installation, after few troubleshooting we found that HKLM\SOFTWARE\Quest\ChangeAuditor\Agent registry key is getting deleted after agent service installation. there are no policies present that deletes this registry key, not able to found any concrete reason on why this keys getting deleted.

Any help will be appreciated.