Why is my computer hanging up when starting… doesn’t start?

I have been experiencing an issue where my computer hangs up when starting and doesn’t start properly. When I press the power button, the system begins to boot, but almost immediately it freezes or gets stuck at the startup screen. I’ve tried restarting several times, but each attempt ends with the same result – a hang-up during the startup process.
This problem started happening suddenly without any prior warning or noticeable issues. The screen either remains unresponsive, or it displays a loading animation that never ends. It’s incredibly frustrating because I’m unable to access my desktop and files. I’ve also noticed that the usual boot sounds from my computer are either missing or occur intermittently.
I’m not too familiar with the technical details, but I wonder if it could be a hardware failure or a software glitch causing this issue. The uncertainty is unsettling, and I’m not sure what steps I should take next to diagnose or address the problem. Has anyone else faced a similar issue where their computer hangs up when starting and doesn’t move past the startup phase?
5 Answers

I understand how frustrating it can be when your computer hangs up during startup. Here are some things you can try:
- Hardware Check: Ensure all your hardware is connected correctly. Sometimes loose cables or improperly seated RAM can cause boot issues.
- BIOS Settings: If you recently changed BIOS settings, try resetting them to default. Enter your BIOS during startup (usually by pressing Del or F2) and look for an option to reset to factory defaults.
- Test with Minimum Hardware: Disconnect all non-essential peripherals. Keep only the keyboard, mouse, and monitor connected. Sometimes external devices can cause conflicts.
- Check Boot Order: Ensure your primary boot device is set correctly in the BIOS. Sometimes incorrect boot settings can cause the system to hang.
- Reseat Components: Open your computer case and carefully reseat components like the RAM, GPU, and hard drive.
Persistence and methodical troubleshooting are key to pinpointing the cause of such issues.

The most common cause of a computer hanging at startup is corrupted system files. I had a similar issue recently, and here’s what I did:
- Safe Mode: Boot your computer in Safe Mode. Press F8 during startup before the Windows logo appears. Select “Safe Mode with Networking” and see if it works. If your computer starts up correctly, you likely have a software issue.
- Run SFC Scan: Once in Safe Mode, open Command Prompt as an administrator. Type
sfc /scannow
and hit Enter. The System File Checker tool will scan for corrupted files and replace them. - Troubleshoot Updates: Often, failed Windows updates can cause startup issues. In Safe Mode, go to ‘Update & Security’ and check for pending updates.
- Check Drivers: Sometimes, outdated drivers can cause startup hangs. Update your drivers, particularly those for essential hardware like the graphics card and network adapters.
- Disk Check: Run
chkdsk
to check your hard drive for errors. Open Command Prompt with administrative privileges and typechkdsk C: /f /r
to begin the process.
If the above steps don’t resolve the issue, it might be time to look at potential hardware faults or consider a clean installation of your operating system.

I’ve had issues like this with my computer before, and usually, it’s a hardware problem. Here are a few things to consider:
- RAM Issues: Faulty RAM can cause hangs. Use a tool like MemTest86 to check for memory errors.
- Hard Drive Failures: Sometimes, it’s a sign that your hard drive is failing. Use SMART data tools to check the health of your drive.
- Graphics Card Problems: If your graphics card is failing, it can prevent the system from booting. Try booting with integrated graphics if you have the option.
- Replace Components: If testing or repair tools indicate a hardware failure, you may need to replace the component causing the issue. Begin with the most suspect part based on diagnostics results.
- Check for POST Beep Codes: If you hear a series of beeps during startup, these can indicate what the problem is. Look up the beep codes for your motherboard.
Consult the manual for your specific hardware to understand the beeps and their meaning.

When my computer exhibited similar behavior, it turned out to be a software incompatibility issue. Here’s what I did:
- Check for Recent Software Installations: Uninstall any software you recently added before the issue began.
- System Restore: Utilize System Restore to revert the machine back to a previous state when it was functioning correctly. Go to the Recovery settings and choose a restore point.
- Update BIOS/Firmware: Sometimes, updating your BIOS or system firmware can fix inexplicable startup hangs. Follow the manufacturer’s instructions to perform this update.
- Examine the Event Viewer: Boot into Safe Mode and use the Event Viewer to look for critical errors that occurred during startup. This can give you clues about the problematic software or driver.
- Check for Malware: Run a comprehensive malware scan using your antivirus software or tools like Malwarebytes.
Regularly update all drivers and perform routine maintenance to keep your system running smoothly.

In my experience, a computer hanging on startup often boils down to a few key issues. Let’s break it down:
- Power Supply Issues: Ensure your power supply unit (PSU) is providing adequate and stable power. An underpowered system can fail to boot properly.
- Check for Overheating: Overheating components can cause the system to hang. Make sure your cooling systems are functioning, dust is cleared, and thermal paste is applied correctly on the CPU.
- Peripheral Conflicts: Unplug all USB devices except for the keyboard and mouse. External devices sometimes trigger hang-ups during startup.
- Corrupted Boot Configuration Data (BCD): Boot into recovery mode and repair your boot configuration. Use
bootrec /rebuildbcd
in the Command Prompt. - Reset CMOS: Occasionally, resetting the CMOS battery can resolve startup issues. Power down, unplug the system, and remove the CMOS battery for about 10 minutes before reinserting it.
It’s also wise to keep your system free from malware and junk files. Regular cleaning and maintenance can prevent many such issues.