Speed Up Your Computer: 12 Proven Fixes for Slow Windows & Mac Devices

Simeon Olaomo

2 min read

At TechUpscale, we believe in making tech work for you—not the other way around. Here’s your go-to guide to speeding up your computer, whether you’re on Windows or Mac.

Why Is My Computer So Slow?

First, let’s quickly understand why computers slow down:

  • Too many background programs

  • Full storage or a cluttered hard drive

  • Outdated software

  • Malware or bloatware

  • Low RAM or aging hardware

  • Startup overload

Now, let’s fix it.

Speed up For Windows Users

Disable Unnecessary Startup Programs

Many apps sneak into startup and slow down boot time.

  • Steps:
    Press Ctrl + Shift + Esc → Go to Startup tab → Right-click & disable apps you don’t need at startup.

Uninstall Bloatware & Junk Software

Some programs run silently in the background.

  • Steps:
    Settings → Apps → Apps & Features or installed Apps → Uninstall apps you don’t use or recognize.

Clean Up Your Disk

Free up space using Disk Cleanup:

  • Steps:
    Start Menu → Search Disk Cleanup → Select Drive → Check unnecessary files (temp files, recycle bin, etc.) → Click Clean up system files.

Update Windows & Drivers

Outdated OS or drivers can cause lag.

  • Steps:
    Settings → Windows Update → Check for updates
    Use Device Manager for driver updates.

Run a Virus/Malware Scan

Use Windows Defender or a trusted antivirus to remove hidden threats.

Upgrade RAM or Switch to SSD

If your PC is still slow after all this, consider:

  • Upgrading from HDD to SSD

  • Increasing your RAM to 8GB or more

Speed up For Mac Users Check & Stop Resource-Hungry Apps

Use Activity Monitor to find what’s eating your CPU/RAM.

  • Steps:
    Applications → Utilities → Activity Monitor → Sort by CPU or Memory → Quit the high-usage apps.

Clean Up Your Storage

  • Steps:

    Apple Menu → About This Mac → Storage → Manage
    Use “Optimize Storage” and remove large unused files.

Reduce Startup Items

  • Steps:
    System Settings → General → Login Items → Disable unneeded apps from launching at startup.

Clear Cache Files

  • Steps:
    In Finder, hold Shift + Command + G → Type ~/Library/Caches
    Manually delete old or large cache folders. (Be careful not to delete system-critical files.)

Update macOS

  • Steps:
    Apple Menu → System Settings → General → Software Update

Consider a Fresh macOS Reinstall

If your Mac is still sluggish after all this, backing up your data and reinstalling macOS can give you a fresh start.

Bonus: General Speed Up Tips for Both Windows & Mac

  • Close browser tabs & background apps when not in use

  • Use lightweight apps instead of heavy alternatives

  • Keep your desktop clean – too many icons slow things down

  • Restart your computer regularly (yes, really!)

  • Use trusted tools like CCleaner (Windows) or CleanMyMac X (Mac)

Want to Stay Fast in a World That’s Getting Smarter?

Tech is evolving, and your computer should keep up. At TechUpscale, we help you navigate the digital world smarter, safer, and faster. From how-tos to deep dives, we’ve got your back.

Final Thoughts

A slow computer doesn’t always mean it’s time to replace it. With the right maintenance and smart tweaks, you can bring your computer back to life.

Got a question or tip that helped speed up your computer? Share it in the comments below.

a computer case with a computer and a computer
a computer case with a computer and a computer
CyberPowerPC Gamer Master Gaming PC, AMD Ryzen 5 5500 3.6GHz, Radeon RX 6400 4GB, 16GB DDR4, 500GB PCIe Gen4 SSD, WiFi Ready & Windows 11 Home (GMA3100A)
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a person holding a small device with a hand holding it
reComputer J4011-Edge AI Device with NVIDIA Jetson Orin™ NX 8GB Module, 4xUSB 3.2, M.2 Key E & Key M Slot, Aluminum case, Pre-Installed Jetpack System

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