Skip to content
Computer Maintenance
IT Services
> Professional IT Repairs and Service
> More than 15 Years of Experience
Circuit board
On-Site Support
Small Business Specialist
> Professional IT Sales and Support
> More than 15 Years of Experience

Gage Computers specialise in computer sales and repair for Home and Small businesses. We also provide service contracts, security software and 24 hour monitoring of computers and servers

Windows 11 Launch - 5th October 2021

What happens from this date?

  • Upgrading to Windows 11 will be FREE for eligible Windows 10 PCs your PC will alert you to the Windows 11 update when available for your machine
  • Windows 11 pre-built PCs, laptops, notebooks & tablets will start to become available
  • You will be able to purchase Windows 11

Can I upgrade my current PC?

Most Windows machines produced in the last 3 years will support Windows 11. However, there are a few requirements that need to be met before you can upgrade your current PC:

Windows 11 Hardware Specification:

  • Processor must be IGHz or higher with 2 or more cores and must be compatible with Windows 11
  • Memory capacity must be at least 4GB RAM (8GB or more is preferable to avoid stuttering & lag)
  • Hard drive minimum 64GB available for installation
  • Graphics must be compatible with DirectX 12 or later with WDDM2.0 driver installed
  • Motherboard firmware needs to be UEFI and Secure Boot capable
  • Trusted Platform Module (TPM) 2.0 must be installed:
  1. If your CPU does not feature TPM 2.0, you will be required to purchase a TPM 2.0 module and install it on your motherboard
  2. Most CPUs sold in the past few years have a version of the TPM embedded in the chip
  3. If your PC is under 3 years you should be able to upgrade, but you may need to enable the TPM setting in your motherboard BIOS. Please refer to your manufacturer’s website/ manual
  • UEFI BIOS and secure boot capable you must have installed your current Windows 10 operating system via UEFI. If you installed via legacy BIOS, Windows 11 may not install.
How to check if your computer is compatible with Windows 11
For Intel PC’s Click Here
For AMD PC’s Click Here
Microsoft Information on Windows 11 Click Here
reseat and re paste fan

Repair Services

We can repair your computer, laptop or Ipad.
Cheaper to repair than replace.

Contact Us


Based in Castlerock, Co. Londonderry we can visit your home or place of business. No call out fee within 20 miles, we only charge for time spent onsite.

Computer Maintenance

About Us

Established in 2003 Gary has been building and repairing computers for businesses and home users for 18 years.


We have a track record of business IT services


No job is too big or too small, we can help.


We only use branded, guaranteed components in our repairs and system builds.

Fast service

We appreciate how a device breakdown can affect you, especially businesses, We aim to get out within one working day to most customers.

All Work Guaranteed

All our repairs carry a 12 month parts warranty.

Microsoft refurbisher

We are a Microsoft Registered Refurbisher All our refurbished P.C.'s either have the original licences or have been correctly licenced with genuine software from Microsoft.


Regular checks can minimise the change of system and data failure plus reduce downtime. We also do a remote management and monitoring service that will check the vital functioning of your machine in real time highlighting issues before they become a problem.


Moving Office or premises? We can assist you moving your IT gear and set up your new Office.


Moving Office or premises? We can assist you moving your IT gear and set up your new Office.

GM-TECH is the trading name of GAGE Computers