The maximum apparent solution to this problem is uninstalling the update itself.
Navigate to: Administrative Templates > Network > Qos Packet Scheduler > Limit reservable bandwidth. Click on Computer Configuration on the right side of the window. A pop-up window will open with title of Group Policy. Press Windows shortcut keys Windows + R to open Run dialog box. Follow the step-by-step guide to tackle slow Internet after Windows 10 Update. This solution speeds up the dropping Internet speed by trimming down the bandwidth which is reserved for Windows 10 and system applications.
Since windows 10, with the aid of using default ,reserves 20% of the Internet bandwidth for the system applications and its operating system, you can’t browse or surf on the Internet with 100% Internet connection. 1.Adjust the Internet Bandwidth Settings:
