Microsoft released the KB4462933 cumulative update on October 24. The update is supposed to improve and repair systems that are running Windows 10 April 2018 Update (1803 version).
Although there were no problems reported for this update initially, Microsoft provided more information about problems you may experience after installing it by confirming two different errors in Windows 10.
The first is an issue of KB4462933 allegedly crashing the developer tools on Microsoft Edge. Launching the tools from the menu does not work according to Microsoft, which states that the problem can be repaired temporarily until the next update.
So in Windows 10 x64, to restore the developer tools, you must log in to an administrator account and delete the following file:
C: \ Windows \ SystemApps \ Microsoft.MicrosoftEdgeDevToolsClient_8wekyb3d8bbwe \ microsoft.system.package.metadata \ Autogen \JSByteCodeCache_64
In Windows x86bit, delete the following file and then restart your browser:
C: \ Windows \ SystemApps \ Microsoft.MicrosoftEdgeDevToolsClient_8wekyb3d8bbwe \ microsoft.system.package.metadata \ Autogen \JSByteCodeCache_32
KB4462933's second problem is an error that Microsoft says could happen after the September 11 2018 .NET Framework update installation.
"Once you install the .NET Framework update on September 11, 2018, delivering SqlConnection can cause problems," says Microsoft.
There is also a temporary way of dealing with it. If you want to go on yourself you can find all the instructions you will you need it here.
Microsoft is preparing to release new cumulative updates next Tuesday, November 13.