PC Running Slow? 5 Things to Check Before Buying New
The most common reasons your PC is sluggish, and how to fix them without spending a fortune.
Is your PC running slow? You are not alone. It is one of the most common complaints we hear at PC Express in Sale, Manchester, and the good news is that a sluggish computer rarely means you need to buy a new one.
Why Is Your PC Running Slow? The Most Common Causes
A slow PC is almost always caused by one of a handful of issues. Here is what to look for.
1. Your Storage Drive Is Full or Failing
A hard drive that is over 90% full will grind your system to a halt. Windows needs free space for temporary files, updates, and virtual memory. Clearing old files, emptying the recycle bin, and uninstalling unused programs can help.
Still on a spinning hard drive? Upgrading to an SSD is the single best upgrade for an older PC. Boot times drop from minutes to seconds. We offer SSD upgrades in Sale from just 59 pounds, including data transfer.
2. Not Enough RAM
If you are running Windows 10 or 11 with only 4GB of RAM, your system is constantly swapping data to disk. For everyday use in 2026, 8GB is the minimum. 16GB is the sweet spot for anything more demanding.
A RAM upgrade is one of the cheapest and most effective computer repairs we do.
Software and Maintenance Issues
3. Malware or Bloatware Eating Resources
Background programs, browser extensions, and malware can quietly consume your CPU and memory. Open Task Manager (Ctrl + Shift + Esc) to check what is using the most resources.
Pending updates, corrupted system files, and fragmented drives all contribute to a PC running slow over time. Check our guide to spring cleaning your tech for DIY tips.
5. Overheating Is Throttling Performance
Dust blocks fans and heat sinks, causing thermal throttling. A professional clean and thermal paste replacement can restore full performance. We handle this regularly in our laptop repair service.
PC Running Slow? When to Repair vs Replace
Here is a rough guide:
PC is 1 to 5 years old: almost always worth repairing
PC is 5 to 8 years old: usually worth an SSD or RAM upgrade
PC is 8+ years old with hardware failures: consider replacing
We also offer home support visits across Sale, Altrincham, and the wider M33 area.
Get Your PC Checked at PC Express, Sale
If your PC is running slow, bring it in or give us a call. Honest assessment, no hard sell, no unnecessary work. Just straightforward computer repair from people who know what they are doing.
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