Skip to content
MacTech Guam
Repair Service

PC Repair

Slow PC, won't boot, or ready for an upgrade? We repair, tune, and build Windows machines to spec — for work, school, or gaming.

Get a Free QuoteCall (671) 477-NERD
Detailed board-level work on a computer at the bench

MacTech Guam is your local shop for computer and PC repair on Guam — Windows laptops, desktops, and custom gaming builds. We fix machines that won't boot or POST, slow and crashing systems, overheating, and virus or malware infections, and we handle GPU, RAM, and SSD upgrades. Based in Tamuning at Park Place Plaza, we diagnose free, quote clearly, and back repairs with a 90-day warranty. We also build custom PCs to your budget.

Common problems we fix

  • Won't POST / no display
  • Slow performance or crashes
  • Overheating / thermal throttling
  • Virus or malware infection
  • GPU, RAM, or storage upgrade
  • Custom build to your budget

Popular repairs

  • Full PC build & configuration
  • GPU / RAM / SSD upgrades
  • Diagnostics & tune-up
  • Virus & malware removal
  • Windows install & setup

Don't see your exact issue? We fix far more than this — just ask.

FAQ

PC Repair on Guam — your questions, answered

Straight answers about cost, turnaround, and what we can fix.

Do you fix slow computers and remove viruses on Guam?
Yes — slowdowns, crashes, pop-ups, and malware are among our most common jobs. We diagnose the cause for free, clean and tune the system, and recommend upgrades only if they'll genuinely help.
Can you build a custom gaming PC on Guam?
Absolutely. Tell us your budget and what you play or work on, and we'll spec, source, and build a custom PC — then configure Windows and your software so it's ready to go. Builds typically take 2–5 days.
My PC won't turn on or has no display — can you help?
Yes. A no-boot or no-display PC can be power, RAM, GPU, storage, or motherboard related. We find the real cause with a free diagnosis before quoting the fix.
Do you upgrade laptops with an SSD or more RAM?
Where the laptop allows it, yes — an SSD and RAM upgrade is the single best way to make an older Windows laptop feel new. We'll confirm what your model supports.

Let's get it fixed.

Free diagnostics, honest pricing, and a 90-day warranty on every repair.

Book a RepairTalk to a TechWhatsApp
CallWhatsAppQuote