A slow Windows computer is one of the most common IT problems. Programs open slowly, startup takes a long time, and multitasking feels sluggish... Sound familiar? The good news is that most often, a computer can be significantly sped up without buying new hardware – but we, a small electronics store in Lapland, are of course happy to sell you new solutions to speed up your machine.
In this guide, we will systematically and practically go through how to speed up a slow Windows computer. The instructions are suitable for both Windows 10 and Windows 11 users.
Why does a Windows computer slow down over time?
The slowing down of a Windows computer is usually not due to a single reason, but a combination of several factors.
The most common reasons include:
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Too many startup programs
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Insufficient RAM
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Old mechanical hard drive (HDD)
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Filling disk space
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Dust and heat issues
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Outdated drivers and Windows updates
When these problems are identified and corrected in the right order, performance often improves surprisingly much.
1. Remove unnecessary startup programs
Many programs start automatically with Windows and slow down system startup.
Here's how:
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Open Task Manager (Ctrl + Shift + Esc or search for "Task Manager" behind the Windows icon)
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Go to Startup
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Disable programs you don't need immediately at startup
This alone can significantly shorten startup time.
2. Free up disk space and clean up the system
A full or nearly full drive significantly slows down Windows, especially if it's the drive where Windows (the operating system) itself is installed.
Check and free up space:
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Settings → System → Storage
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Uninstall old programs you don't use
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Empty the Downloads folder and the Recycle Bin
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Enable Windows' Storage Sense; it can sometimes help.
3. Upgrade your computer to an SSD
If your computer still has a traditional HDD hard drive, it is likely the biggest single factor slowing it down. It is particularly significant for device performance and loading speeds if the operating system itself is installed on an SSD.
An SSD:
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Speeds up startup by tens of seconds
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Improves program opening speeds
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Makes the entire system smoother
An SSD upgrade is one of the most cost-effective ways to speed up an old Windows computer.
Here you can conveniently find SSDs and devices available through us.
4. Add RAM as needed
Too little RAM causes stuttering, especially if you use several programs at once. RAM prices have seen a huge increase towards the end of 2025 due to the construction of AI data centers and the general AI hype, but it is expected that prices will decrease over time, as is usually the case.
General recommendations for RAM amount:
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8 GB: light use, web browsing, and light office work
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16 GB: smooth general use and multitasking for more programs.
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32 GB or more: heavy work and professional use, such as image and video editing.
Adding memory is often an easy and quick operation that significantly improves the user experience.
See the RAM available from Louru here and search results where the word RAM appears.
5. Update Windows and device drivers
Outdated updates can cause performance and compatibility issues.
Check:
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Windows Update (security and stability)
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Graphics card and chipset drivers
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Manufacturer support pages for laptops
Updates can improve both speed and system stability.
You can also bring your devices to our store in Kittilä, where we can perform all these checks and operations for you. For current pricing, please send a message to tuki@louru.fi or call 040 040 5878.
6. Check for antivirus and malware
Malware and heavy security programs can significantly slow down your computer.
Recommendations:
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Use one reliable antivirus program
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Perform a full scan
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Remove redundant security software
Windows' own security (Windows Defender) is sufficient for many basic users, but for professional use, it is very essential to maintain good data security with, for example, Finnish WithSecure software, available through us, from www.withsecure.com.
You can also bring your devices to our store in Kittilä, where we can perform all these checks and operations for you. For current pricing, please send a message to tuki@louru.fi or call 040 040 5878.
7. Overheating slows down performance
When a computer overheats, it automatically limits performance.
Do at least these:
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Clean dust from ventilation openings. Here you can find a convenient can of compressed air with your next purchase.
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Ensure good air circulation
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Use a cooling pad if necessary
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Check that the device is not on a soft surface
Laptops, in particular, benefit from regular cleaning.
You can also bring your devices to our store in Kittilä, where we can perform all these checks and operations for you. For current pricing, please send a message to tuki@louru.fi or call 040 040 5878.
8. When is it sensible to acquire a new computer?
If the computer:
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Does not support Windows 11
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Is more than 8-10 years old
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Does not support an SSD or memory cannot be added
...it may be more economically sensible to replace the device with a new one or a good-condition used one. See our serviced and refurbished laptops here and order right away! You'll get a 12-month Louru warranty with them.
Why is my Windows computer slow even though it's new?
Often, the reason is pre-installed programs, excessive startup programs, or insufficient RAM.
Does an SSD really speed up an old computer?
Yes. An SSD is usually the biggest single improvement to the speed of an old Windows computer.
How much RAM do I need for Windows 11?
The recommendation is at least 8 GB, but 16 GB offers a significantly smoother user experience.
Does Windows inevitably slow down over time?
Not necessarily. Regular maintenance, updates, and the right hardware choices can keep the machine fast for a long time.
Is it worth having a professional speed up your computer?
If you are unsure about compatibility or installations, an expert store will save you time and errors.
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