1) Download a Hosts file from Bluetack or elsewhere. 2) Make sure you can view file extensions on your computer. Click on My Computer> Tools> Folder Options. Untick everything as per screenshot and then click on Apply. 3) Go to where the Hosts file is located in Windows XP; C Drive> Windows> System32> Drivers> Etc 4) Delete your existing “Hosts” file and replace it with the new one that you downloaded from Bluetack. 5) Right Click on the new file and rename it to HOSTS – without the “.txt” file extension.