Windows Diagnostic and Usage Data Bugged, Results in Lower CPU - Microsoft Community

since february 12th 2017 have had lower cpu benchmarks (2% lower in cinebench r15 cpu, 11% lower in cinebench r15 opengl , 30% lower frame rate in game tyranny verified cpu limitation reducing cpu frequency).

i tried restoring system image solved problem, noticed after arbitrary time connected internet problem come , permanent i.e. wasn't resolved going offline or restarting computer.  however, if never connected internet after restoring image problem not occur.

yesterday found culprit: if windows diagnostic , usage data on full(recommended) problem occurs.  resolved changing setting basic , performance magically comes back.  have verified on clean install of latest iso of windows 10 on different drive , think bug , strange 1 since there no obvious increase in cpu usage account reduced performance.   appreciated if others run cinebench tests before , after change confirm.

my specifications:

intel core i7 5820k

asus sabertooth x99

32gb kingston hyperx fury ddr4 2133mhz

palit gtx 1080 premium

noctua nh-d15s cpu cooler

corsair rm1000i psu

samsung sm961 nvme m2 ssd

samsung 840pro 256gb ssd

crucial m4 256gb ssd

dell s2716dg gsync 2560x1440 144hz monitor

phanteks enthoo evolv atx case

windows 10 64 bit home version 1607 build 14393.693 (anniversary update)

hi,

we appreciate letting know issue.

we suggest send feedback through feedback hub app. after open app, search feedback similar yours , upvote it, , comment on if like. if don’t see any, please provide new feedback in 1 of listed categories other people can upvote it. if suitable, take screenshot of problem , attach feedback. take screenshot, press the windows logo key + print screen. find screenshot, in search box on taskbar, type screenshots, select the screenshots folder.

for now, recommend keep system date.

let know if need further assistance.

Windows / Windows 10 / Performance & system failures / PC