A computer can feel slow for several different reasons. Start with simple, reversible checks and change one thing at a time so you can see what actually helps.
Check what is using resources
Press Ctrl + Shift + Esc to open Task Manager. Review CPU, Memory and Disk while your usual apps are running. Sort by a column to identify unusually heavy processes. Avoid ending tasks you do not recognize; search the publisher or app name first.
Review startup apps
In Task Manager, open Startup apps and disable only programs you recognize and do not need immediately after sign-in. Leave security, backup and hardware utilities enabled unless you understand their role.
Free space safely
Open Settings → System → Storage and review temporary files. Check selections before removing anything, and back up personal files before making larger changes. Do not delete unfamiliar folders from Windows or Program Files.
Install updates and restart
Install pending Windows and driver updates from trusted settings pages, then restart. If the slowdown began immediately after an update, note the timing and investigate that specific change rather than installing random “optimizer” tools.
This article is general information, not a diagnosis of your specific device. Menus and available options can vary by software version.
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