Note that all our PCs come with a mandatory surge protector that is life time guaranteed for up to $150,000.00 - $250,000.00 of insurance against equipment damage. Also all orders may take at least one business week to be processed to confirm that you are not fraudulent if your method of payment is suspicious. We only sell in the US. Please understand that this is necessary to keep prices low. If your Linux OS ever gets infected with a virus you can send it back to us and we will fix it free and send it back to you because you never will get a virus. Our return or refund policy is as follows: If the item was not as described or defective on delivery return it and we will fix it. If you just don't like it then there will be a 15% restocking fee and you will be refunded the rest. No refunds on shipping. Thank you for doing business with us. Shipping is not included in the purchase price. You will be charged for USPS shipping. If you do not install the Surge Protector as instructed in the manual you will not be covered. The hardware is covered under the Manufacturer's guarantee. If you want an extended Guarantee then please contact us before purchase. We are not responsible for any computer that has Windows Vista installed on it as far as security, fragmentation, speed, performance, or functionality.