Resolve error "Your security system has blocked an application with expired or not yet valid certificate from running"

Here's how:

1. Go to Control Panel
2. Java
3. In the Security tab click the "Edit Site List ..." button
4. Click Add button
5. Insert the URL of the website that you want access in (URL should begin with HTTP//or https://)
6. Click Add button
7. Click OK button
8. Click OK button

Note:you could find an icon Java (32-bit) rather than Java.

If you won ' t "find in Control Panel a Java icon sure" is the Java is installed, open a text editor and create a fi Le with name exception.sites containing the URL of the the website so you want access in (URL should begin with HTT p://or https://) and save it in the following path:

C:\Users\username\AppData\LocalLow\Sun\Java\Deployment\security where username is the name of the user.

Source

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Application blocked by security settings error on client ' Windows8 OS

Http://stackoverflow.com/questions/23270818/application-blocked-by-security-settings-error-on-client-windows8-os

Resolve error "Your security system has blocked an application with expired or not yet valid certificate from running"