Why Using a PC Cleaner and Updating Drivers Can Improve Computer Speed (and When They Don’t)

Using a PC cleaner and updating drivers can improve computer speed in specific cases, but the benefit depends heavily on what the cleaner does and which drivers you update. Clearing startup programs, freeing disk space, and updating graphics drivers can make a noticeable difference. Registry cleaners and one-click optimizers rarely do, and some have been the subject of regulatory action over deceptive marketing. This guide explains what actually slows down a Windows PC, which cleanup steps are worth your time, how driver updates help, and how to avoid the tools that overpromise, so that readers can speed up their computers safely.

Can a PC Cleaner and Driver Updates Really Make a Computer Faster?

Yes, but only when they fix a real cause of slowness, and many popular tools do not. A cleanup helps when a PC is short on disk space, loaded with startup programs, or running unnecessary background apps. A driver update helps when the old driver has a performance bug or lacks optimizations for a new game or application.

The claims often go too far. No credible independent source supports advertised promises such as “up to 50 percent faster.” Microsoft itself notes that older PCs with outdated hardware may not see significant improvements, and that upgrading hardware may be the better long-term fix.

What Actually Slows Down a Windows PC?

The most common causes of a slow PC are too many startup apps, a nearly full drive, malware, pending updates, and aging hardware. Microsoft’s own list of performance tips covers these causes and starts with updates, malware scans, and freeing disk space. You can read the full list on Microsoft’s performance tips page.

Hardware also matters. A computer that still uses a spinning hard drive or has very little memory will struggle with modern software, and no cleaner can change that. Identifying the cause first saves time, because the right fix for a full drive is different from the right fix for malware.

Which Cleanup Steps Help the Most?

The cleanup steps that help most are the built-in ones that Microsoft recommends, and they cost nothing. Work through them in this order.

• Disable heavy startup apps. Open Task Manager, choose Startup apps, and turn off programs you do not need at sign-in. Task Manager rates each app’s impact, with “Low” meaning under 300 milliseconds of CPU time and “High” meaning more than one second.
• Free disk space. Use Settings, System, Storage, and then Temporary files to remove clutter. Microsoft says low disk space can slow your device and block system updates.
• Turn on Storage Sense. It removes temporary files automatically, though it is off by default and works only on the system drive.
• Uninstall unused apps. Programs you no longer use take up space and sometimes run in the background.
• Run a malware scan. Windows Security can run a quick scan, a full scan, or an offline scan that restarts the PC.

These steps are what most people really mean when they say “PC cleaner,” and Windows already includes them.

Do Registry Cleaners Improve Speed?

Registry cleaners rarely improve speed in a meaningful way, and Microsoft does not support their use. In a support article, Microsoft states that it does not support the use of registry cleaners and is not responsible for issues caused by them. That article covers older Windows versions, but the position has not changed in a way that endorses them.

Independent testing has found small or inconsistent results. A 2011 PCWorld lab test of four cleanup utilities on five used PCs found that the tools “scarcely made a difference” in overall performance, and some tasks even ran slower. Boot-time improvements did appear, with one utility saving 10 seconds on a ThinkPad. A separate PCWorld article around 2016 reported that a registry cleaner saved about 10 seconds of boot time on an older desktop with a hard drive and nothing noticeable on a laptop.

Both tests are old, so they show a pattern and not a current benchmark. The takeaway is that benefits, if any, are small, while the risk of removing something Windows needs is real. If you try one, create a restore point first.

Are One-Click PC Optimizers Safe?

Some one-click optimizers are legitimate, but a few have used deceptive scare tactics, and the Federal Trade Commission has acted against them. In March 2024 the FTC announced that Restoro and Reimage would pay $26 million to settle charges that they deceived consumers. The agency alleged that fake Windows-style pop-ups and scans reported serious problems regardless of the computer’s real condition, and that the companies then upsold repair services. You can read the details in the FTC’s press release on the settlement.

An earlier case shows the same pattern. In 2012 the FTC reported a judgment of more than $163 million against a marketer of fake “system scan” software that found threats on every computer. These were allegations and court outcomes in specific cases, not proof that every cleaner is a scam. The lesson is to be cautious about any tool that finds hundreds of “errors” and then asks you to pay.

When Do Driver Updates Improve Speed?

Driver updates improve speed mainly for graphics cards and, in some cases, for chipset and power-management drivers. A new graphics driver can add optimizations for newly released games and software, and vendors publish these regularly. The gains vary by workload. In one reported test of an NVIDIA release, benchmark results rose by roughly 6 to 8 percent in some creative workloads, while games gained only about 2 to 2.5 percent.

For other hardware, such as Wi-Fi, Bluetooth, and storage controllers, no credible measured speed gains were found. Updates there are better described as stability and compatibility fixes. If your hardware works well, a driver update is often unnecessary, and a new driver can occasionally introduce new problems.

How Should You Update Drivers Safely?

The safest way to update drivers is through Windows Update first, and then through the hardware maker’s own site or app. Windows 11 installs recommended drivers automatically. Optional drivers are not installed automatically, and you can find them under Settings, Windows Update, Advanced options, Optional updates.

For graphics cards, use the vendor’s tool: the NVIDIA App, AMD Software: Adrenalin Edition, or Intel’s graphics software. Before you install a driver manually, create a restore point so you can roll back. Update when you have a reason, such as a bug fix, a security flaw, or a new game, and restart afterward.

Are Third-Party Driver Updaters Worth It?

Third-party driver updaters are usually not worth the risk. Malwarebytes has argued that most systems do not need such tools, that a tool may swap in a nearly identical driver, and that the wrong driver can make hardware unusable. It has also said that many of these programs use exaggerated scan results to push a purchase. Malwarebytes detects some popular driver updaters as potentially unwanted programs, though that is the company’s classification and the user can choose to allow them.

Windows Update and the hardware maker already provide official drivers for free. If a tool reports “100 outdated drivers” and asks for payment, close it and check Device Manager or the manufacturer’s site instead.

What Is a Safe Step-by-Step Speed-Up Routine for Windows 11?

A safe routine starts with the free built-in tools and ends with hardware, in this order.

1. Restart the PC. A restart clears temporary problems, and Microsoft suggests it if performance does not improve after closing apps.
2. Install updates. Go to Settings, Windows Update, and install Windows and optional driver updates.
3. Scan for malware. Run a quick scan in Windows Security, or an offline scan if you suspect an infection.
4. Free disk space. Open Storage, remove temporary files, and turn on Storage Sense.
5. Remove unused apps. Use Settings, Apps, Installed apps.
6. Disable heavy startup apps. Use Task Manager and focus on items rated “High” impact.
7. Update graphics drivers if you play games. Use the vendor’s app.
8. Create a restore point before manual changes.

If the PC is still slow, consider the hardware.

Does Hardware Matter More Than Cleaning?

For an older PC, hardware often matters more than any cleaner. The best-supported upgrade for a machine with a spinning hard drive is a solid-state drive. In one Tech Advisor test of an older gaming PC, an SSD cut boot time from 41 seconds to 16 seconds, though that is a single example and results vary.

Memory matters too. Windows 11 requires a minimum of 4 GB of RAM and 64 GB of storage, but those are minimums and not a recommendation for smooth use. If your PC struggles with multitasking, more memory may help more than any software tool.

What About Windows 10 in 2026?

Windows 10 reached the end of support on October 14, 2025, so security is now a bigger concern than speed. Microsoft says unsupported PCs are more exposed to viruses and malware and may slow down over time. Consumer Extended Security Updates for eligible PCs run to October 12, 2027, and they provide security fixes only. A cleaner cannot replace security updates, so plan to move to Windows 11 or replace the PC.

How Can You Tell If Your PC Is Actually Faster?

You can measure improvement with simple before-and-after checks. Time your startup with a stopwatch, note how long a favorite app takes to open, and check Task Manager for CPU, memory, and disk use. Repeat the checks after each change, so you know which step helped.

If a tool claims a large gain but your stopwatch shows none, trust the stopwatch. Measuring one change at a time also helps you avoid keeping tools that do nothing.

When Will a Cleaner or Driver Update Not Help?

A cleaner or driver update will not help when the real problem is hardware, a failing drive, or an operating system that no longer receives security updates. Microsoft’s own guidance says older PCs with outdated hardware may not see significant improvements. In those cases, extra software can even make matters worse by adding background processes.

If a PC is still slow after the free steps, check Task Manager to see which resource is maxed out. A drive stuck near 100 percent points to storage, while memory near its limit points to a RAM shortage.

Conclusion

A PC cleaner and driver updates can improve computer speed when they remove real bottlenecks such as startup programs, a full drive, or an outdated graphics driver. Registry cleaners and one-click optimizers mostly do not, and some marketing has drawn FTC action. Use the free built-in tools first, update drivers through Windows Update and the hardware maker, create a restore point, and consider an SSD for older machines.

Frequently Asked Questions

Does a PC cleaner really make a computer faster?

It can when it removes real bottlenecks, such as startup programs and temporary files that fill a nearly full drive. Registry cleaning rarely helps, and independent tests show small or no gains. Microsoft’s built-in tools do most of the useful work for free, so try them before buying software.

Does updating drivers improve computer speed?

Sometimes. Graphics driver updates can improve gaming and creative performance, though measured gains are often small, such as a few percent. Wi-Fi, Bluetooth, and storage driver updates are more about stability. If your hardware works well, an update is optional, and you should create a restore point before installing.

Are registry cleaners safe?

They carry risk and little proven benefit. Microsoft states that it does not support registry cleaners and is not responsible for problems they cause. If you choose to use one, back up your data and create a restore point first, and avoid tools that bundle toolbars or pressure you to pay.

How do I update drivers on Windows 11?

Open Settings, Windows Update, Advanced options, and Optional updates to install available driver updates. For graphics cards, use the NVIDIA App, AMD Software: Adrenalin Edition, or Intel’s software. If Windows Update has nothing, check the hardware maker’s website, and restart after installing.

What is the best way to speed up an old PC?

Start with the free steps: install updates, scan for malware, free disk space, remove unused apps, and disable heavy startup programs. If the PC still lags and uses a hard drive, an SSD is the best-supported upgrade, and more memory can help with multitasking.