I wasn't aware that MS can use your computer to deliver updates to other people or use other's computers to deliver updates to your computer. Perhaps this is why some updates download quite quickly while others seem to go on for far too long. Here's an excerpt from the article I read about this and instructions on how to stop this behavior if you choose to do so:
By default, Microsoft configures Windows to receive Windows Update files not only from Microsoft’s own servers, but also from other Windows PCs located around the Internet.
Here's how to stop this and receive al updates direct from MS:
Windows 11:
1 – Right-click the Start button and select Settings from the menu.
2 - In the left-hand pane, click Windows Update.
3 - In the right-hand pane, click Advanced options.
4 - Click Delivery optimization.
5 - Toggle the “Allow downloads from other PCs” setting to Off.
Windows 10:
1 – Right-click the Start button and select Settings from the menu.
2 – Click Update & Security.
3 – Click the Delivery Optimization link in the left-hand column.
4 – Toggle the “Allow downloads from other PCs” setting to Off.
That’s all there is to it. From now on ALL of your Windows Update files will come directly from Microsoft and your PC will NOT send any update files to other computers.
By default, Microsoft configures Windows to receive Windows Update files not only from Microsoft’s own servers, but also from other Windows PCs located around the Internet.
Here's how to stop this and receive al updates direct from MS:
Windows 11:
1 – Right-click the Start button and select Settings from the menu.
2 - In the left-hand pane, click Windows Update.
3 - In the right-hand pane, click Advanced options.
4 - Click Delivery optimization.
5 - Toggle the “Allow downloads from other PCs” setting to Off.
Windows 10:
1 – Right-click the Start button and select Settings from the menu.
2 – Click Update & Security.
3 – Click the Delivery Optimization link in the left-hand column.
4 – Toggle the “Allow downloads from other PCs” setting to Off.
That’s all there is to it. From now on ALL of your Windows Update files will come directly from Microsoft and your PC will NOT send any update files to other computers.