You will need
  • Computer
  • Internet access
  • CCleaner
To clear the DNS cache.

Click the "start" tab and locate the "Command prompt". Select it.

Black screen appears in which you will need to enter the following "ipconfig /flushdns" and press Enter. You will receive a message that the DNS cache is successfully cleared.
To clear the cache memory.

Right-click the mouse on the desktop and select new, Shortcut. Specify the path to the file "% WINDIR% \ system32 \ rundll32.exe" where % WINDIR% is the directory where on your computer hosts a Windows operating system. Click "Next".

Name the new shortcut as you will be comfortable – "Clear RAM" or "Clear cache", for example. Run the program.
To clear the thumbnails cache.

In the start menu, locate "utilities", "Clean disk". Select the drive you want to clean and click "OK".
To optimize the system using CCleaner.

CCleaner – a free program that will help you to not only remove temporary files but also cleans the basket, removes temporary files from all browsers and check the system registry.

Download and install CCleaner.

Open it.

Put in the chevrons show where the system needs checking and cleaning.

Tune in to what the first time it can take a long time.

Click on the "Clear"button.