Posted on Wednesday, July 23, 2025
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by Outside Contributor
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Sponsored By: My Computer Works
At My Computer Works, one of our most frequently asked questions is: Is it better to shut down or sleep a PC, or is it okay to keep my PC on 24/7? The short answer? It depends. Your tendencies for use, your preferred hardware, and how well you maintain your rig all come into play in whether running 24/7 is a great idea or an express ticket to unnecessary wear and tear.
In this blog, we’ll discuss the pros and cons of keeping a PC running continuously and how to do so wisely if that’s your choice. Armed with this information, you should have a better idea of whether it’s a wise decision to keep your PC running continuously.
The Long Haul: What It Means for Hardware
Still wondering, “Is it bad for a Pc to run 24/7?” In our opinion, leaving a PC to operate continuously can be harmless, but the wear and tear on its components should be taken into consideration.
Parts like fans, spinning hard disks, and even SSDs have a finite lifespan. Here’s what to consider to answer this question better:
- Fans and mechanical drives: Constant rotations create friction, dust accumulation, and eventual slowdown or breakdown.
- Solid-state drives: While durable, SSDs could wear out sooner under repeated read and write stresses.
- Power supplies: These can have their lifetimes shortened due to heat and variations in electrical load over time.
To maintain your system’s long-term health, proper airflow, periodic filter cleaning, and routine maintenance are essential, especially if you want to keep your PC running continuously. Periodic servicing with My Computer Works can help prevent long-term damage.
Energy Use and Cost: Worth It?
The U.S. Department of Energy released data showing that desktop computers operating 24/7 annually cost between $28 and $65 in electricity, depending on the system configuration and usage.
Although these don’t seem so bad, pricing can vary based on your computer, where you live, and the electricity rates. Your machine has the potential to draw anywhere from 60 to 300 watts, depending on your system. That can cost an extra $5 to $30 a month.
With this in mind, is sleep mode bad for PC devices, and will it save you money? Sticking computers in sleep mode can slash that figure by 90%. Here’s a closer look at what to do to conserve power – and yes, we included sleep mode, too:
- Use Sleep Mode: It minimizes energy consumption to under 5 watts and supports instant resumes.
- Completely Power Down Overnight: Virtually zero current draw, and it zeros out memory usage.
- Energy-saving BIOS settings: Features such as AMD Cool’n’Quiet or Intel SpeedStep decrease idling consumption, so be sure to have a look at these energy-saving settings.
Concerned about energy efficiency and power consumption? Take a look at our recommendations regarding reducing power wastage when using your computer.
Does Running 24/7 Hurt or Help Performance?
There are many pros and cons associated with running a PC 24/7. Below, we’ve shared the advantages and drawbacks of running a PC continuously in terms of its impact on performance. What you learn might surprise you, but spoiler alert, it’s not the best for performance:
Advantages:
Here are some of the advantages of keeping a PC on 24/7:
- Background updates can be installed while you sleep.
- Background scans for antivirus, backups, and defragmentation are performed when needed.
- Remote access remains online when it’s needed.
Drawbacks:
Here are some of the risks of keeping a PC on 24/7:
- Memory leaks accumulate over time.
- Applications slow down or crash if you don’t restart often.
- Performance can degrade without being perceived.
If you do continue to run your machine, attempt to restart it every couple of days to free up memory and apply pending updates.
Should I Turn My Computer Off at Night? When It Makes Sense to Leave It Running
Having your computer powered on at all times isn’t always a bad thing. Here is when it makes sense to leave it on:
- Media Servers: Streaming files to multiple devices around your home.
- Automated backups: Especially those that run overnight.
- Use of remote desktop: Routinely, when working from home or away.
- Cryptocurrency mining: Ongoing processing is a necessity.
- Large file downloads or rendering: Certain operations involve ongoing time.
Keeping systems on in business or data environments ensures that workflows are not interrupted. But for ordinary user populations, one has to ask oneself: Do I even need to keep my PC running? If not, make an effort to power down.
PC Health Habits That Make a Difference
No matter how long your computer stays turned on, checking PC health regularly helps to see foreseeable issues beforehand and keep it running smoothly:
Keep your system running as it should when running it 24/7 with these steps:
- Monthly filtration and fan cleaning: Place towers in areas with unrestricted airflow to minimize PC overheating.
- Schedule Periodic Reboots: Clean out temp files and restore memory usage.
- Monitor Health with Tools: Use Performance Monitor or programs like HWMonitor to track temperatures, voltage levels, and disk health. See our full guide on How to Monitor PC Health.
- Adjust Power Settings: Develop personalized plans for performance or look up the best power settings for your PC to suit your needs.
Final Thoughts: Should You Shut Down or Not?
There’s no one-size-fits-all answer. If your workflow depends on round-the-clock access or background processing, keeping your PC on 24/7 makes sense, provided you keep it maintained and at a suitable temperature.
If you’re just browsing and answering emails, shutting down or using Sleep Mode saves money and energy and reduces wear and tear.
Need help deciding what’s best for your setup? Reach out to the team at My Computer Works. We offer tailored support, regular maintenance, and expert insight to help you get the most out of your technology, day or night.
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