How to Fix a Slow Computer: 7 Repairs That Actually Work

A slow computer is one of the most frustrating things in daily life. Pages take forever to load, programs freeze mid-task, and a simple restart takes five minutes. Before you spend $800 on a new machine, know this: in most cases, a slow computer can be fixed — often for a fraction of the cost of replacement.

Here are the seven repairs our technicians perform most often to bring sluggish computers back to full speed.

If your computer still has a traditional spinning hard drive (HDD), this single upgrade will make the biggest difference of anything on this list. SSDs are 5–10x faster than mechanical drives for everyday tasks like booting Windows, opening programs, and loading files.

What you'll notice: Boot times drop from 2–3 minutes to under 20 seconds. Programs open instantly. The computer feels like a completely different machine.

Is your computer eligible? Most laptops and desktops made after 2010 can accept an SSD upgrade. We clone your existing drive to the new SSD so you don't lose any files or settings.

Cost: SSD drives run $60–$120 depending on capacity. Add our flat $59 service fee for installation and data migration.

RAM (memory) is what your computer uses to run programs simultaneously. If you're running Windows 10 or 11 with only 4GB of RAM, your computer is constantly swapping data to the hard drive just to keep up — which is slow and hard on the drive.

Signs you need more RAM:

• The computer slows dramatically when multiple browser tabs are open
• Programs take a long time to switch between
• You hear the hard drive constantly spinning even when you're not doing much

The fix: Upgrading from 4GB to 8GB or 16GB of RAM is one of the most cost-effective performance improvements available. Most laptops and desktops support it.

Malware running silently in the background consumes CPU, RAM, and network bandwidth — all while hiding from you. Even without a full-blown virus, many computers accumulate unwanted software (bloatware) that loads at startup and never stops running.

What we do: A full malware scan and removal, followed by a startup program audit to disable anything that doesn't need to run when Windows boots. This alone can cut boot times in half on heavily loaded machines.

Signs this is your problem: High CPU or disk usage in Task Manager even when you're not doing anything, browser redirects, or unexpected pop-up ads.

This one surprises people. When a computer overheats, it automatically throttles its processor speed to protect itself — which makes everything feel slow and sluggish. Dust-clogged vents and dried-out thermal paste are the two most common causes of overheating.

Georgia summers make this worse. Higher ambient temperatures mean your cooling system has to work harder. We see a spike in heat-related slowdowns every June through August.

What we do: Open the machine, blow out all dust from the heatsink and fans, and apply fresh thermal paste between the CPU and heatsink. The difference in temperature — and performance — is often dramatic.

Signs this is your problem: The fan runs loudly and constantly, the bottom of the laptop gets very hot, or the computer slows down after running for 20–30 minutes but feels faster right after a restart.

Windows needs free space on your drive to operate efficiently — for virtual memory, temporary files, and system updates. When a drive gets above 85–90% full, performance degrades noticeably.

Quick wins:

• Empty the Recycle Bin (you'd be surprised how many people never do this)
• Run Disk Cleanup to remove temporary files and old Windows update files
• Move photos, videos, and documents to an external drive or cloud storage
• Uninstall programs you no longer use

If your drive is consistently full, an SSD upgrade with larger capacity (see #1) solves both problems at once.

Sometimes a computer has accumulated so many software conflicts, corrupted files, and registry errors over the years that a clean Windows installation is the most efficient path to full performance. This is especially true for machines that are 3–5 years old and have never been reinstalled.

What to expect: A fresh Windows install removes everything and starts clean. We back up your files first, reinstall Windows, restore your data, and reinstall your essential programs. The result is a machine that performs like it did on day one.

When we recommend this: When a computer is slow across the board — not just one symptom — and other fixes haven't resolved it.

This one is less common but worth knowing about. The CMOS battery is a small coin-cell battery on your motherboard that keeps the system clock running and stores BIOS settings. When it dies, the computer can take much longer to POST (the initial startup sequence before Windows loads), sometimes adding 30–60 seconds to every boot.

Signs this is your problem: The computer is slow to start but feels normal once Windows loads, the clock keeps resetting to the wrong time, or you see BIOS error messages on startup.

The fix: A $5 battery and a 15-minute repair.

Most slow computers have more than one issue contributing to the problem. Our technicians will assess your machine, identify the root causes, and give you an honest recommendation — whether that's a $60 SSD upgrade or a frank conversation about whether it's time for a new computer.

Call 404-295-2020 — flat $59 on-site service fee, we come to you anywhere in the Atlanta metro area.