slow Windows 10 when pending updates

 Install the Windows Performance Toolkit (part of the WIn10 SDK https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk), open the command prompt with admin rights.


Now copy those commands betwen the //////////  in an empty .CMD file and run the CMD (as admin), capture the slowness, next install the pending update and stop the trace:

//////////
xperf -on PROC_THREAD+LOADER+CSWITCH+DISPATCHER+DISK_IO+DISK_IO_INIT+FILENAME+FILE_IO+FILE_IO_INIT+PROFILE -stackwalk profile+CSwitch+ReadyThread+ProcessCreate+FileCreate+FileCleanup+FileClose+FileRead+FileWrite+DiskReadInit+DiskWriteInit -buffersize 2048 -MaxFile 4096 -FileMode Circular -f C:\Kernel.etl
xperf -start UserLogger -on Microsoft-Windows-Shell-Core:::'stack'+Microsoft-Windows-Immersive-Shell:::'stack'+Microsoft-Windows-Immersive-Shell-API:::'stack'+Microsoft-Windows-UI-Shell:::'stack'+Microsoft-Windows-Shell-Shwebsvc:::'stack'+Microsoft-Windows-WindowsUpdateClient:::'stack' -BufferSize 2048 -f C:\User.etl

timeout -1

xperf -stop
xperf -stop UserLogger

xperf -merge C:\User.etl C:\kernel.etl C:\SlowWindows.etl -compress

del C:\user.etl
del C:\kernel.etl
/////////////////


If you have captured the slowness, press a key to stop tracing.

Compress the SlowWindows.etl as 7z/RAR (to reduce the size), upload it (Onedrive, Dropbox) and paste a link here.