If you are trying to update your Windows 10 machine but receive a message We couldn’t connect to the update service, We’ll try again later, or you can check now, If it doesn’t work, make sure you’re connected to the internet here are a few things you could try to fix the issue.
Although this problem mainly occurs when you do not have a valid internet connection, many times, it may also happen due to no reason at all. If you click on the “Retry” button, you will end up getting the same error on your screen.
We couldn’t connect to the update service
1] Run Windows Update Troubleshooter
Open Windows Settings > Update & Security > Troubleshoot. Microsoft has included on this page to fix various problems with your computer. You can run the different Troubleshooters to fix different problems. Among them, you can find Windows Update Troubleshooter. Click on Run the troubleshooter button.
It will open a window, and you need to follow the on-screen instructions.
2] Run Internet Connections Troubleshooter
Make sure you have a valid internet connection. If you are not sure, try to open a webpage in any browser and see if the page loads. Next, open the same Troubleshooters Page in Windows Settings and run the Internet Connections Troubleshooter. It will try to fix all the problems related to your internet connection. If you think that you do not have any internet connection issue, but still Windows Update is showing error, you can try changing the internet connection as well.
3] Restart the Windows Update Service
Search for “Services” in the Taskbar search box. Open the Services Manager window and find out the Windows Update Service. Double-click on it to open its Properties box. You will see the status as either Running or Stopped.
If it is Stopped, you need to click on Start button.
If it is Running, you need to click on Stop and the on the Start button to restart the service.
While here, make sure that the following Services are also running:
- Remote Procedure Call
- Background Intelligent Transfer Service.
4] Change the DNS server
Change the DNS server and see. Type ncpa.cpl in Search box and hit Enter. Right click on your Network’s icon and select Properties.
Select the Networking tab. Under This connection uses the following items, click Internet Protocol Version 4 (TCP/IPv4), and then click Properties.
Click Advanced and select the DNS tab. If there are any DNS server IP addresses listed there, write them down for future reference, and remove them from this window. Click OK.
For Google Public DNS, select Use the following DNS server addresses. If there are any IP addresses listed in the Preferred DNS server or Alternate DNS server, write them down for future reference.
Replace those addresses with the IP addresses of the Google DNS servers: 22.214.171.124 and 126.96.36.199.
Restart the connection you selected above.
5] Reset Windows Update components
If nothing helps, maybe you need to reset the Windows Update components and see if that works for you.
Hope something helps.
More here: Windows Update Fail To Install.