Block ad-/spyware/popups without installing software

Here's a small trick that will help you to block any ad-/spyware/popups without installing software.

1. First, you'll have to download (or open) the following file:

   Download "hosts.txt"

   The file was originally located at mvps.org.
2. Now browse to the following directory on your PC:
   C:\WINDOWS\system32\drivers\etc
3. Open the file called "hosts" (without quotes) with notepad. You can do this by renaming the file to "hosts.txt".
4. Now select everything that is located in the just downloaded "hosts.txt" and place it in the one located on your system like this:
   1. Open the new hosts.txt
   2. Select all (Ctrl+A) and Copy (Ctrl+C)
   3. Open your host file located in the WINDOWS directory with notepad and Select all (Ctrl+A) and Paste (Ctrl+V)
5. Now save your file and you're done (Remember to rename "hosts.txt" back to "hosts")!