Hi Zoran
My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.
Click Start > Settings > Privacy > Feedback and diagnostics.
Set it to basic
Click Start
Type: regedit
Right click regedit
Click Run as administrator
Navigate to the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DataCollection.
Right click and create a DWORD value named AllowTelemetry then set
Press Windows key + R
Type gpedit.msc then hit Enter
Expand Computer Configuration > Administrative Templates > Windows Components
In the Windows Components dialog, find and right-click on Data Collection and Preview Builds
Then double-click Allow Telemetry in the right pane
Choose Disabled and choose 3-Full from the drop-down menu.
Then click OK to save settings
Click Apply and ok > reboot computer