Check Task Manager
Press Ctrl+Shift+Esc. On the Processes tab, sort by CPU and by Memory. If one app is consistently above ~30% while you are doing nothing, close it and reopen. If it comes back immediately, note the name before the next step.
Windows computer running slow
Slow Windows machines are usually a mix of startup load, a full disk, and background updates. Work top to bottom. Stop if you are asked for an admin password you do not control.
Trim startup apps
In Task Manager open the Startup apps tab. Disable items you do not need at boot (chat, updaters, trial software). Leave antivirus and video drivers enabled. Restart once and time how long it takes to become usable.
Free disk space
Open Settings → System → Storage. If the system drive is under 10% free, Windows will feel stuck. Empty Recycle Bin, remove unused apps, and move large videos off the C: drive. Avoid random “cleaner” utilities.
Install pending Windows updates
Settings → Windows Update → Check for updates. Install, restart, then check again. A PC that has been skipping updates for months often stalls during background servicing.
When to get TechMax involved
If the PC is still slow after a restart, or Task Manager shows System, Service Host, or antimalware using CPU for more than 15 minutes, a remote session can check disk health, drivers, and malware without guesswork.
Need this done with you on the line?
Start a LogMeIn Rescue connection with the PIN your TechMax technician provides.
Start support connection