error message "cannot load the main class.

I ran windows update yesterday and installed the recommended updates, restarted my laptop today the error message "Unable to load the main class" appears in a box and I couldn't do anything until I had closed this box, after the loading of firefox it displays a message not responding, then a bar indicating that plugin adobe did not start successfully so I clicked to reload page Then, I rebooted my laptop to see if this solves the problem, but the same error message appeared and firefox have responded in the same way, someone has an idea how I can fix this problem?  I run anti-virus software and malware from comodo and my OS is windows vista 32. I also downloaded an update for adobe flash yesterday but the problem has not produced until after I had done the updates of windows.  Thank you

Hello Fiona,

Thank you for your response.

You are facing this problem might because of Java program on your computer.

I suggest you perform the clean boot and check the status of the issue, which will help you identify the problem.

Keep the computer in a clean boot and check the status of the issue. If everything works well after a clean boot, you can deduce that some third-party services are at the origin of the problem. Continue with the remaining steps to pin-point on the third party service. After find you the program that is causing the problem, you will have to perhaps to update or install a newer version of the program, if you rarely use that you should consider uninstalling the software.

How to perform a clean boot for a problem in Windows Vista, Windows 7 or Windows 8.

http://support.Microsoft.com/kb/929135

Note: please go through the section:How to reset the computer to start as usual after a clean boot troubleshooting section of Kb to start the computer to a normal startup after you fix the problem.

Hope his helps.

Tags: Windows

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