![]() ![]() I could no longer open the start menu, the mouse cursor only changes into busy for a second, that's all that happens. Defaulting the security settings went bad. Component Services complained about some self referencing value when I chose Edit. Isn't that the service that launches Windows Apps? I almost never use Apps, just desktop, but I have a few installed.Ĭhecking properties of RuntimeBroker in Component Services and it had security set to custom for all three options. Searching the APPID GUID in RegEdit I find it belongs to RuntimeBroker. ![]() This security permission can be modified using the Component Services administrative tool. To the user NT AUTHORITY\SYSTEM SID (S-1-5-18) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID A reboot always solves the condition until next time.Ĭhecking Event Viewer I see in System log a matching error 10016 repeating at the same timestamps as the locks. I have to scratch my first hypothesis because there were no updates today either. My machine is standalone and never used in a domain.īegan today again. I haven't changed anything there on this machine. There may be something undefined that should be defined but I don't know. I checked into the local group policy too but didn't recognize any relevant options. The only place where I saw "30 minutes" was the time which lock screen slideshow should end and turn off screen. I've checked every power setting (screen off after 20 min inactivity), screen saver (disabled but greyed at 15 min), sleep = 2 hours. 30 minutes interval exactly and no user activity resets this timer. Yes the 12:07 screen lock came as expected. Third time it happened I had collected a small log and saw a pattern. Still no updates, which I'd come to expect. no updates? I noted the time in notepad and kept on working. Suddenly it locked and I checked update, and. This is clearly a bug in Windows but I thought it was going to be patched or hotfixed soon. I have tried most tricks like sfc /scannow and clearing/cleaning/repairing the windows update files but nothing works, and I can't even understand the relation between the update service and lock screen. Letting it update, and reboot if needed, will end the random locking until next time. When there are no packages available this lock-down behavior doesn't happen. Even when the Windows update front end says it has checked an hour ago, surely, if I refresh, there is a package available. This pattern is so clear that it is my early "canary bird" detector for updates. It took me just a few weeks to see the pattern of the behavior.Įvery time it happens there is a new Windows update package available. If you are interested in my other fruitless debugging attempts - read all.) (Edit: If you are looking for the solution then jump to my last update of this post. It all started at the last "November update". It happens when working, when idling, when gaming, whenever. It can be 5 minutes apart or 30 but it will not end by itself. What I do know is that Windows works fine for days and weeks and then suddenly it goes into this random Win-L like lock. This has bugged me for quite some months now. Service File Name: C:\Program Files\NVIDIA Corporation\NvStreamSrv\NvStreamKms.sysĬ:\Program Files\NVIDIA Corporation\NvStreamSrv\NvStreamKms.sys ![]() It's not a restart nothing in the log about anything faulting: The event log does show this at nearly the right time I can't see why the video system would suddenly decide to install/start a new service. The first thing I always suspect is a remote login via RDP, but that's not what's happening. Dual monitors, NVidia GEForce 740, business environment, nothing unusual. Having the same issue it's only every couple of days, but's unnerving - happens during typing. ![]()
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