My Windows 10 laptop shows 100 percent disk usage in Task Manager all the time and everything is incredibly slow. The laptop is only 2 years old.
Constant 100 percent disk usage on a 2-year-old laptop almost always means you have a traditional hard drive (HDD) that cannot keep up with Windows 10's background processes. The permanent fix is upgrading to an SSD — but here are steps to improve performance immediately. Open Task Manager and click the Disk column to see what is using it. Common culprits include SysMain (formerly Superfetch), Windows Search indexer, and Microsoft Compatibility Telemetry. To disable SysMain: open Services (type services.msc), find SysMain, right-click Properties, set Startup Type to Disabled, and click Stop. Do the same for Windows Search if you do not use the search feature often. Also disable Tips and Suggestions: go to Settings, System, Notifications, and turn off Get tips and suggestions. Disable Delivery Optimization: Settings, Update & Security, Delivery Optimization, turn off Allow Downloads from Other PCs. If your laptop has 4GB of RAM, that is also contributing to the disk thrashing — upgrading to 8GB makes a significant difference. But truly, the best investment you can make is a $40 SSD. Cloning your existing drive to an SSD takes about an hour with free software like Macrium Reflect and will make the 100 percent disk problem disappear permanently.
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