Power SCADA Experts takes so long time to start runtime and Explorer on Windows 7 OS
This slow open of Explorer & runtime is due to Security Certificate revocation (CRL) checks. Vista, Windows 7 support requires .NET DLLs to be signed. This signing normally means that at startup, .NET checks to see if the Certificate has been revoked. This requires Internet access or access to the domain group CRL files. After 2-3 minutes the system continue running if the check cannot be done.
Microsoft recommends disabling CRL checking as a workaround by disabling this option in Internet Explorer. Use the following steps to disable the CRL checking in Internet Explorer:
Select Start»Control Panel.
Double-click Internet Options.
Select the Advanced tab.
In the Security section, uncheck the Check for publisher's certificate revocation option.
By disabling the CRL checking using the Internet Options, you are not exposing yourself to a security threat because this check is not working. The reason why this problem is showing up is because your network settings are not allowing Windows to access the CRL
Kindly check the attached snapshots (using internet explorer) of the above setting for your reference.
Also check the User Account Control Setting and set this to never notify if it is set at other level setting.