Why you might need to disable overclocking

Overclocking means running your processor or graphics card faster than the manufacturer set it to run. Some people do this intentionally to squeeze out extra performance, but overclocking can cause your computer to overheat, crash unexpectedly, or damage hardware over time. If your computer is overheating, restarting randomly, or freezing during normal tasks, overclocking might be the cause — and turning it off is often the fastest fix.

The tricky part is that overclocking lives in your BIOS or UEFI settings, which is a layer below Windows or macOS. You cannot turn it off from your regular settings menu. This guide walks you through finding those settings and resetting them to factory defaults, which disables any overclocking that was applied.

Key Takeaways

  • Overclocking settings live in BIOS or UEFI, not in Windows or macOS — you must restart your computer and enter the setup screen to change them.
  • The fastest way to disable overclocking is to reset BIOS to factory defaults, which undoes all manual changes at once.
  • You enter BIOS by pressing a specific key during startup — usually Delete, F2, or F12, depending on your motherboard brand.
  • If you cannot find overclocking settings or are unsure which ones to change, resetting to defaults is safer than guessing.

How to enter BIOS or UEFI on your computer

Before you can disable overclocking, you need to get into the BIOS or UEFI setup screen. This happens before Windows or macOS loads. Shut down your computer completely, then turn it back on and watch the screen carefully during startup.

As soon as the computer starts, you will see a brief message telling you which key to press to enter setup. Common keys are Delete, F2, F10, or F12. The exact key depends on your motherboard manufacturer — Dell, HP, Lenovo, ASUS, and MSI all use different keys. Press that key repeatedly (do not hold it down) until the BIOS menu appears. If you miss the window, the computer will boot normally into Windows or macOS; just shut down and try again.

If you do not see a message, look up your specific computer model online and search for "enter BIOS" — the manufacturer's support page will tell you the correct key. On a laptop, you may need to hold the key down instead of pressing it repeatedly.

Finding overclocking settings in BIOS

Once you are in BIOS, you will see a menu with tabs or sections. Overclocking settings are usually under a tab called "Advanced," "Overclocking," "Performance," or "CPU Settings." The exact layout varies widely by manufacturer.

Look for settings with names like "CPU Multiplier," "CPU Voltage," "Core Voltage," "CPU Clock Speed," "Boost Clock," or "GPU Clock." If you see any of these, they have likely been changed from factory defaults. Do not try to adjust them individually — it is straightforward to make things worse. Instead, look for an option to reset everything to defaults.

If you cannot find these settings or are not sure what you are looking at, that is fine. The safest move is to reset the entire BIOS to factory defaults, which will undo any overclocking without you having to identify specific settings.

Resetting BIOS to factory defaults

Most BIOS menus have an option to reset to defaults. Look for a button or menu item labeled "Reset to Defaults," "Load Defaults," "Restore Defaults," "Load Optimized Defaults," or "Clear CMOS." This option is usually in the main menu or under an "Exit" tab.

Select that option and confirm when prompted. The BIOS will reset all settings — including any overclocking — back to what the manufacturer set them to. This is a safe operation and will not erase your files or programs.

After the reset, you will see a prompt asking whether to save and exit. Select "Yes" or "Save and Exit." Your computer will restart and boot into Windows or macOS normally. The overclocking is now disabled.

Manually disabling overclocking settings

If you prefer to disable overclocking without resetting everything, you can change individual settings. This takes longer and requires more caution, but it leaves other BIOS settings unchanged.

Look for "CPU Multiplier" or "CPU Clock Speed" and set it to "Auto" — this tells the processor to run at its factory speed. Do the same for "CPU Voltage" or "Core Voltage" — set these to "Auto" as well. If you see "Boost Clock" or "Turbo Boost," you can leave these enabled; they are not the same as overclocking and help performance without the risk.

If your graphics card is overclocked, look for "GPU Clock" or "Memory Clock" settings and set those to "Auto" too. After changing each setting, navigate to the exit menu, save your changes, and restart.

What to do if your computer still overheats after disabling overclocking

If you have disabled overclocking and your computer is still overheating or crashing, the problem is something else. Check that your fans are spinning and that dust is not blocking air vents — a clogged fan is the most common cause of overheating in computers that are not overclocked.

You can also check your actual temperatures while Windows is running. read a free tool like HWiNFO or Core Temp, run it, and watch the CPU temperature while your computer is idle. If it is above 80 degrees Celsius, your cooling system may need cleaning or the thermal paste between the processor and heatsink may have dried out. If temperatures are normal but the computer still crashes, the problem may be a failing hard drive or bad RAM, not heat.

Frequently Asked Questions

Will resetting BIOS erase my files or programs?

No. BIOS is a separate system from Windows or macOS and your files. Resetting BIOS only changes hardware settings — your documents, photos, and installed programs stay exactly where they are.

What if I cannot find the key to enter BIOS during startup?

Search online for your computer model and "enter BIOS" — the manufacturer's support page will tell you the exact key. On some newer computers, you may need to restart from the Windows settings menu instead of pressing a key during startup.

Can I undo a BIOS reset if I change my mind?

Yes. If you reset BIOS and want to re-enable overclocking, you can enter BIOS again and manually change the settings back. However, you will need to remember what the original settings were, which is why taking a photo of the settings before you reset is helpful.

Is it safe to leave overclocking disabled permanently?

Yes. Running your computer at factory settings is completely safe and is actually better for hardware longevity. You will not notice a performance drop in everyday tasks like browsing, email, or office work.

What if my computer will not start after I reset BIOS?

This is rare, but if it happens, restart the computer and enter BIOS again. Look for an option to reset CMOS or clear the BIOS battery — this is a more thorough reset that usually fixes startup problems. If the computer still will not start, contact the manufacturer's support line with your model number.