Unable to open Start or Search after Window 7 to Windows 10 1809 Upgrade
This one was a real head scratcher. After upgrading from Windows 7 to Windows 10 1809, you could not open the Start Menu. When you would click on it, nothing would happen. You could also not perform a search. I saw in the System event log: "The server Microsoft.Windows.ShellExperienceHost _10.0.17763.1_neutral_neutral_cw5n1h2txyewy! App did not register with DCOM within the required timeout." about every 30 seconds. I noticed the same thing with Cortana. and "The server Microsoft.Windows.Cortana _1.11.6.17763_neutral_neutral_cw5n1h2txyewy!CortanaUI.AppXfbn8w4s0jbk3tjevpcn9kaxerc6rby8k.mca did not register with DCOM within the required timeout." I captured a procmon trace and found: Both ShellExperienceHost.exe and SearchUI.exe exit with an error (-1073741790 which is Access Denied) as soon as they try to load sysfer.dll (part of Symantec Endpoint Protection). See https://support.symantec.com/us/en/article.TECH252314.html Evidently, sysf