How to Use Windows Task Manager to Fix a Slow Computer
Windows Task Manager is one of the most powerful diagnostic tools on your computer — and most people have only ever used it to force-close a frozen application. Here is what it can really tell you.
How to open Task Manager and find the full view
Press Ctrl+Shift+Esc to open Task Manager directly. The default view shows running applications. Click More details for the full view. The Processes tab shows every running programme and process, sorted by CPU usage by default. Click any column header to sort by that metric.
The Performance tab
The Performance tab is where Task Manager becomes genuinely useful. Click CPU to see real-time usage, frequency and number of cores. Click Memory to see total RAM, how much is in use and how much is available. Click Disk to see read and write speeds. These graphs tell you at a glance which component is the bottleneck.
The Startup tab — fixing slow boot times
The Startup tab shows every programme that runs automatically when Windows starts, with an impact rating of Low, Medium or High. High-impact startup programmes significantly slow boot time. Right-click anything you do not need running at startup and select Disable. Focus on high-impact items first.
Identifying problem processes
Sort the Processes tab by CPU or Memory to see what is consuming the most resources. If you see an unfamiliar process using significant resources, right-click it and select Search online — Windows will search for information about it. Most processes are legitimate, but this is a quick way to investigate anything suspicious.
Using Task Manager alongside a full diagnostic tool
Task Manager gives you a real-time snapshot but lacks historical data and health assessments. For a more comprehensive picture including drive health, temperature, security status and a plain English summary, a dedicated tool like Cerebro Scan fills the gaps that Task Manager leaves. Use both together for a complete understanding of your system.
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