🖥️ Why Is My Computer Slow? Common Causes and Blue Screen Fixes

A sluggish computer or the dreaded Blue Screen of Death (BSOD) can be incredibly frustrating—especially when you have important work to get done. Whether you’re using a Windows PC or a laptop, understanding the root causes behind these issues can help you fix them more effectively. In this blog, we’ll explore key reasons your computer might be slow, and solutions to common BSOD errors.

🚶‍♂️Part 1: Common Causes of Computer Slowness

1. Too Many Startup Programs

When your computer boots, it often launches several programs in the background. Over time, this slows down startup and general performance.Solution:

Press Ctrl + Shift + Esc to open Task Manager.
Go to the Startup tab and disable unnecessary apps.

2. Low RAM or High Memory Usage

When your system runs out of memory, it struggles to handle multiple tasks at once.Solution:

Upgrade your RAM (if possible).
Close unused apps or browser tabs.
Monitor usage in Task Manager under the Performance tab.

3. Fragmented or Full Hard Drive

Traditional HDDs get fragmented over time, causing longer read/write times. Also, if your drive is nearly full, your system will lag.Solution:

Use Windows Disk Cleanup.
Defragment the disk (for HDDs): Start → Defragment and Optimize Drives.
Move files to an external drive or cloud storage.

4. Background Processes or Malware

Background processes, especially malicious ones, can eat up resources.Solution:

Scan your computer with antivirus/anti-malware tools like Malwarebytes.
Use msconfig or Task Manager to review running services.

5. Outdated Drivers or OS

Old drivers or operating systems may not be optimized for current software, leading to slowdowns.Solution:

Update drivers via Device Manager or from manufacturer websites.
Keep Windows updated (Settings → Update & Security).

💥Part 2: Common Blue Screen Errors & Fixes

A BSOD usually means Windows has encountered a fatal error. Here are common BSOD issues and how to resolve them.

🔧 1. IRQL_NOT_LESS_OR_EQUAL

Cause: Faulty drivers or hardware conflicts.Solution:

Update all device drivers.
Run Windows Memory Diagnostic (mdsched.exe).
Uninstall recently added hardware.

🔧 2. PAGE_FAULT_IN_NONPAGED_AREA

Cause: Corrupt RAM or a bad driver.Solution:

Check your RAM with memtest86 or the built-in diagnostic tool.
Remove or update faulty software.

🔧 3. SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

Cause: Usually tied to graphics card drivers.Solution:

Boot into Safe Mode and uninstall the graphics driver.
Download and install the latest driver from the GPU manufacturer’s site.

🔧 4. CRITICAL_PROCESS_DIED

Cause: A critical Windows process has failed.Solution:

Boot into Safe Mode.
Run sfc /scannow in Command Prompt to repair system files.
If unresolved, perform a system restore or reset.

🔧 5. DRIVER_POWER_STATE_FAILURE

Cause: Power settings or incompatible drivers.Solution:

Update drivers, especially for display and chipset.
Adjust power settings: Control Panel → Power Options → High Performance.

🧰 General Tips to Prevent BSODs & Improve Speed

Regularly update Windows and all drivers.
Use high-quality antivirus software.
Perform monthly disk cleanups and virus scans.
Back up your data regularly in case you need to reset Windows.

💡 Final Thoughts

Computer issues don’t always require a professional technician. With the right tools and some patience, you can solve many problems on your own—from a slow system to BSOD crashes. Stay updated, keep things clean, and maintain a healthy software environment.