Ok, first off, you should not just download tools of the internet and run it on your system.
Second, I'm expecting the process hike because of N360 being installed.
Norton Antiviruses are known for heavy RAM and CPU usage.
Download
CCleaner from
here- Double click on the ccsetup.exe file to start the installation of the program.
- Select your language and click OK, then next.
- Read the license agreement and click I Agree.
- Click next to use the default install location.
- Under Install Options, choose all the default settings except I would recommend that you unclick/untick install the Yahoo! Toolbar, unless you want it. You can also Uncheck the 'Automatically check for updates' box.
- Click Install then finish to complete installation.
- Double click the CCleaner shortcut on the desktop to start the program.
- On the Windows tab, under Internet Explorer uncheck Cookies if you do not want them deleted. (If deleted, you will likely need to reenter your passwords at all sites where a cookie is used to recognize you when you visit).
- If you use either the Firefox or Mozilla browsers, the box to uncheck for "Cookies" is on the Applications tab, under Firefox/Mozilla.
- Click on the Options icon at the left side of the window, then click on Advanced.
Uncheck 'Only delete files in Windows Temp folders older than 48 hours'.
- Caution: It is not recommended that you use the "Issues" feature unless you are very familiar with the registry as it has been known to find legitimate items. Click on Issues and make sure Registry Integrity is UNCHECKED!
- Click on the Cleaner icon on the left side of the window, then click Run Cleaner to run the program.
- After CCleaner has completed its process, click Exit.
Now try accessing the websites, and tell me if you have any problem.