Remove all connected External Devices such as a printer, scanner, audio jack, etc.Start windows into a clean boot state and check for updates, which may fix the problem if any third-party application, service causing the windows update stuck.Open Settings -> Time & Language -> Select Region & Language from options on left. Here Verify your Country/Region is correct from the drop-down list.Next, make sure you have a Good and stable internet connection to download the latest windows update files from the Microsoft server.So check and make sure sure you have enough disk space to download and install October 2020 updates (minimum 32 GB Free Disk Space) Graphics: DirectX 9 or later with WDDM 1.0 driver.Hard drive space: 32GB for 64-bit or 32-bit.Memory: 1GB for 32-bit or 2GB for 64-bit.Processor: 1GHz or faster CPU or System on a Chip (SoC).

The first thing you have to do check Windows 10 20H2 minimum system requirement.