We are probably the only online store in the world to say this to their customers: please call.
We mean it.
If you have a problem, sometimes it is easier to call the office and we can work out a solution quickly. Our phone number goes straight to our office, not a call centre. We do use an answering service to take messages when we are too busy to talk or outside office hours.
We can be contacted by phone, email and livechat. All our details are on our contact us page.
Here are the best starting places
How to troubleshoot a RAM upgrade
How to troubleshoot cloning a PC
The Upgradeable Support Portal : find an answer or raise a support ticket
Guides to help you