Step 1: Select service to reinstall.
To reinstall an OS on your VPS, log in to your Client Area and click Services > VPS Hosting.
You will see a list of your VPS hosting plans. Click on the one you want to manage.
Step 2: Choose template and reinstall.
You should see full service management page and the selected tab Manage VM. Make sure that your server is stopped Now look for Templates section.
Select any of available OS Templates and hit Reinstall button. You will get a popup message to confirm your installation, go ahead and press yes.
Step 3: Wait for the procedure to finish.
Your server should now be in locked state with pending reinstall task. Give it some time to complete.