The visual studio installer is stuck on checking for updates. So now I cannot modify a visual studio installation.

CodePudding user response：

I got a useful hint from here - it works:

Just to recap for anyone getting here: This is not an issue with your computer / your installation. There seem to be server side issues currently,

The following Workarounds exist:

Update your hosts file as described here
    TL;DR: Add
    93.184.215.201 download.visualstudio.microsoft.com
    to C:\Windows\System32\drivers\etc\hosts
For those who can, there seems to be a workaround by using a VPN that goes through the US, as the US does not seem to be affected by

this issue.

CodePudding user response：

I also faced this problem. The solution for me was setting up a VPN.