We provide fast honest computer repair Mission Viejo, CA, 92691, and 92692 since 1991. We have serviced over 250,000 units since then. We have great expertise in repairing all brands of PCs and Macs, for all types of hardware problems, and software problems related to the Operating System. We are conveniently located, and promise fast, reliable work, all with a written guarantee.

Our turnaround is typical 24 hours, and we keep all common repair items in stock. We prioritize based on need, for no additional charge, so just tell us the situation and we will try to help. Finally, as an internet promotion, we are offering free Diagnosis buy just clipping the following coupon or showing us it on your smart phone.

Internet Special Free Diagnosis

Free Diagnostic
  • Free Diagnosis. We offer free diagnosis with our Internet special coupon. Just print or show us.

Computer Repair Mission Viejo

  • Fast turnaround. No appointment necessary. We prioritize based on need. Just tell us if your business is down or some urgent deadline and we will prioritize you no extra charge.
  • Written estimates. Just bring your machine and we will quickly give you a written estimate. All work is authorized before being done.
  • Our rates are reasonable, and we draw upon years of expertise to provide you with fast, fair service. We have over 250,000 units serviced, so we have much experience in all kinds of problems.

Computer Repair Mission Viejo: Desktops

We repair all kinds of PCs, and all brands. We repair any hardware problem, like no sound, blank screen, no video, no power up. We repair PC desktop, All in Ones, Servers and workstations. Symptoms include:

  • No Power. You get nothing. No lights, nothing.
  • Blank Screen. Computer seems to start up, but you get no video.
  • BSOD (Blue screen of Death) Windows. You get the infamous blue screen during startup, or while running the computer.
  • Infinite Update Loop. Something went wrong during a windows update, and during restart, the circular dot hourglass goes round and round but it never finishes.
  • Windows Update Crash. System keeps crashing and restarts but never completes the update.
  • Mouse Hang or Freeze. The computer freezes: the mouse hangs and stops moving.
  • Clicking or Whirring Sounds. There are clicking or whirring sounds. Sometimes the computer does not start, other times the computer seems to work, but the sound persists.
  • No sound at all. There is no audio, either completely, or only certain functions.
  • DVD or CD problem
  • Internet Connection Problem

Computer Upgrades

We also perform upgrades, like hard drive upgrades, either a larger drive or faster drive to SSD (Solid State Drive). We upgrade gaming videocards, sound cards, increase RAM and upgrade CPUs. We can do upgrades for PC and Macs, Desktops, Notebooks, AIO (All in Ones) Workstations and Servers.

  • Hard Drive Upgrade (SSD or larger Size)
  • Ram Upgrade
  • CPU Upgrade
  • Power supply Upgrade
  • Video card Upgrade
  • Upgrade components like Monitor, DVD player, Sound card, Keyboard and Mouse

OS Repair and Upgrades

We are also expert in OS (Operating Software) like Windows and Mac OS. We can repair Windows XP, Windows Vista, Windows 7, Windows 8, and Windows 10. On the Mac side, we can repair OS 10.5, 10.6, Leopard, Snow Leapard, Lion 10.7, Mountain Lion 10.8, Maverick , El Capitan, Sierra, High Sierra and Mojave.

  • Reload Windows OS or Mac OS
  • Windows OS or Mac OS failed to update
  • Upgrade Windows OS or Mac OS to latest version

Computer Repair Mission Viejo: Laptops

Cboost fixes Notebooks

Similarly, we repair all laptops and notebooks. Dell, HP, Lenovo, Samsung, Apple, Sony. We repair hard drives, power connectors, and screens. Additional services include

  • Screen Replacement and upgrade
  • Battery Replacement or upgrade
  • Power adapter replacement or upgrade
  • Water spill damage.
  • CD-Rom unable to read
  • No wireless or intermittant wireless.

All Brands Covered

Compuboost services all brands, as well as custom unbranded units. No system we cannot service or repair.

  • Dell Computer Repair Mission Viejo
  • HP Computer Repair Mission Viejo
  • Lenovo Computer Repair Mission Viejo
  • Apple Computer Repair Mission Viejo
  • Asus Computer Repair Mission Viejo
  • Samsung Computer Repair Mission Viejo
  • Mac Computer Repair Mission Viejo

Other Services

Compuboost On-Line Store. Order here for both shipout and store pickup Dismiss