Unable to download the newest bootcamp drivers for my windows partition

Solution 1:

Updating any drivers for Windows 10 can be accomplished through the following methods.

• While booted to Windows, run Apple Software Update.
• While booted to Windows, run Windows Update.
• While booted to macOS, run the Boot Camp Assistant. Look for Download Windows Support Software under Action on the menu bar. Copy the files to a FAT32 or ExFAT formatted flash drive. Boot to Windows and run the setup application in the BootCamp folder.
• Download the Windows Support Software directly from Apple. The procedure is outlined in Chris F Carroll's answer. Unfortunately, your question does not provide enough information to determine which PKG file to download.