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| Look after your computer |
Most computer users eventually face the common and frustrating problem of having a computer that suddenly becomes extremely slow. This slowdown can happen gradually or abruptly, and in many cases, users react by taking quick, random actions in hopes of fixing the issue. What many don’t realize is that some of these actions can actually make the problem worse—or even cause permanent damage to the system or data.
In this comprehensive guide, we discuss what NOT to do when your computer slows down dramatically, along with safer and more effective alternatives that will help keep your device performing at its best.
1. Don’t Keep Restarting the Computer Repeatedly
Why is this a mistake?
While restarting your computer can fix temporary glitches, doing it over and over again can hide the root cause of the slowdown rather than solving it. Forced shutdowns can also damage system files or interrupt essential background processes.
What to do instead
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Open Task Manager to identify resource-heavy programs.
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Check CPU, RAM, and disk usage.
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Close unnecessary background applications before considering a restart.
2. Don’t Install Fake “Speed Booster” Programs
The danger behind booster apps
Many applications that claim to “speed up” your computer are nothing more than adware, bloatware, or even malware disguised as optimization tools.
Why avoid them?
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They may delete essential system files.
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Some consume additional system resources.
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Others collect user data without permission.
Safer alternatives
Use built-in system tools such as:
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Disk Cleanup
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Windows Defender
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Storage Sense
These tools are reliable, safe, and do not introduce security risks.
3. Never Ignore the Possibility of Viruses or Spyware
Why this is a critical mistake
Malware, spyware, and unwanted background programs are among the top causes of severe system slowdowns. Ignoring this possibility puts your device—and your data—at serious risk.
What you should do
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Perform a full system scan using a reputable antivirus.
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Ensure your antivirus definitions are fully updated.
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Use additional trusted tools such as:
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Malwarebytes
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Microsoft Safety Scanner
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These tools can often detect threats that ordinary antivirus programs may overlook.
4. Don’t Delete System Files or Change Advanced Settings Randomly
Why caution is important
Some users attempt to “clean up” their devices by deleting unfamiliar files or editing registry entries without knowing their purpose. This can damage Windows, cause boot failures, or break essential features.
What to do instead
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Only delete files from Downloads, Temp, or Cache folders.
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Avoid editing the Windows Registry unless you know exactly what you’re doing.
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Follow official Microsoft support guidelines when adjusting system settings.
5. Don’t Overload Your Computer With Too Many Startup Programs
Why this slows your system
Startup programs launch automatically with Windows and can significantly increase boot time and slow down performance, especially on older devices.
What to do instead
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Open Task Manager → Startup
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Disable non-essential apps from launching automatically
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Keep only important programs active (e.g., antivirus)
6. Don’t Ignore Hardware-Related Issues
Why this matters
Sometimes the problem isn’t software—it’s the hardware itself. A failing hard drive, overheating CPU, or insufficient RAM can dramatically slow performance.
What to do
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Check CPU temperature using monitoring tools.
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Listen for unusual sounds from the hard drive.
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Run hardware diagnostics.
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Consider upgrading to an SSD if you’re still using an HDD.
7. Don’t Continue Using the Computer While It's Freezing Constantly
The danger
Working on a freezing computer increases the risk of data corruption. Unsaved files may be lost, and system resources may become overloaded.
Better approach
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Save your work immediately.
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Close open programs.
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Run system diagnostics or restart after identifying resource-heavy tasks.
8. Don’t Ignore System Updates
Why this is risky
Skipping updates leaves your computer vulnerable to security threats and may reduce performance since updates often include optimizations and important patches.
What to do
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Keep Windows and drivers updated.
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Install updates regularly to ensure stability and speed.
Conclusion
A slow computer can be frustrating, but acting impulsively or applying random fixes often causes more harm than good. Avoiding the common mistakes outlined in this article is essential for maintaining your computer’s reliability, security, and longevity. By diagnosing the problem properly, using trusted tools, and taking a systematic approach, you can restore your device’s performance without risking data loss or system damage.
Understanding what not to do is just as important as knowing the right steps to take. Treat your device carefully, monitor its performance regularly, and address issues promptly to keep your computer operating efficiently for years to come.