Hi,
As I understand you are facing issue with Computer freezing with a demonic noise. Not to worry, I am here to help you with this issue.
I would like to know more information about the status of the issue, so that we could help you better.
1. Have you made any changes to the computer prior to this issue?
2. Do you get any error code or error message?
Let us try the following methods and check if it works for you.
Method 1:
Boot to safe mode with networking and check if the issue persists. If the issue does not persist in Safe mode with networking, then place the computer in clean boot state and then boot to normal mode and check. Placing the computer in clean boot state will help you determine which third party app/program is causing this issue.
Step 1: Boot to Safe mode with networking.
Advanced startup options (including safe mode):
http://windows.microsoft.com/en-US/windows7/Advanced-startup-options-including-safe-mode
Step 2: How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7:
http://support.microsoft.com/kb/929135
Note: Once you are done with the troubleshooting, try the steps provided in Step 3 to reset the computer to start as usual.
Method 2:
Try the steps provided in the following Microsoft help article.
Optimize Windows 7 for better performance:
http://windows.microsoft.com/en-US/windows7/Optimize-Windows-7-for-better-performance
For the Internet Explorer issue, refer the following Microsoft help article.
Please reply if the steps provided did not help, so that we could help you in a better way.