The approach to trigger the sound distortion was simply opening Firefox and surfing. Looking at the running service (in Task Manager) there appeared to be three ‘high CPU consumers’ running when I replicated local sound distortions these being AVGnsa, Firefox and NT System & Kernel. I removed the offending PuP references but (as I suspected) this didn’t show any marked change in machine behaviour. I did some research online and loaded Malwarebytes to do a check for malware which indicated some signbs of PuP, but no real issue of any significence (or at least that’s how I assessed it). A similar effect is experienced with Plex, albeit there is no errors just continual buffering. BTW the sonos devise playback 'internet based radio ok' ( a route which would cut the PC itself out). The sonos devices are all wired rather than wireless. Then over this weekend, when I tried to use Sonos, i got "network connection speed insufficient to support playback buffering". This wasn't just on line, I began to have local sound issues (through Itunes and Foobar2000). It began to get more persistent problems (when playing online i started to get and distortion on sound). Not long after that I began to sense a general degradation in performance but not too noticeable. It was actually my wife that found that solution before I did, by doing that on her laptop. No idea why, but seemed to resolve it by loading Windows updates. I have two NAS drives (WD "MyBookLiveDuo") which ran fine, but a few weeks ago they suddenly become inaccessible. Processor: Intel(R) Core(TM) i7 CPU 870 2.93GHz (8 CPUs), ~2.9GHzīy an large it has been a pretty reliable piece of kit and I use it forĪ) media streaming around the house (Plex for video and Sonos for audio)ī) online gaming *(Elder Scrolls online, Star Wars The Old Republic etc) Operating System: Windows 7 Home Premium 64-bit So I supply them after a preamble on how I got hereĪ few weeks ago, with my PC suddenly showing a noticeable drop in performance following applying a round of Windows 7 updates. I posted a general message ( ) asking for a steer and Brian Drab suggested that I post here and pointing to instructions to run Farbar Recovery Sacn Tool (FRST) and Security Check and paste the outputs.
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