System lagging

Question

System lagging

JOHN BLISS 0

My stem starts lagging i dont know why and my processors and ssd everything is good

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2 answers

Your answer

Answer 1

Follow these steps to troubleshoot and improve performance on a Windows 11 PC that is lagging even when CPU and SSD seem fine:

Install all Windows and driver updates

Select Start > Settings > Windows Update > Check for updates.
Install everything offered and restart if required.
Then go to Start > Settings > Windows Update > Advanced options > Optional updates, install any available drivers, and restart.

Scan for malware Malware can cause lag even on good hardware.

Select Start > Settings > Privacy & security > Windows Security > Virus & threat protection.
Select Quick scan and let it complete.

Free up disk space Low free space can slow the system.

Select Start > Settings > System > Storage.
Turn on Storage Sense, then select Configure Storage Sense or run it now and under Free up space now choose Clean now.
Still in Storage, select Temporary files, choose what to remove, then select Remove files.
Optionally run Disk Cleanup: select Start, type Disk Cleanup, open it, choose the system drive, and clean unneeded files.

Remove unused apps and background apps

Go to Start > Settings > Apps > Installed apps.
Uninstall apps not needed.
For apps that remain, select More options (… ) > Advanced options and under Background app permissions set Let this app run in the background to Never for apps that do not need background activity.

Disable startup apps

Press Ctrl + Shift + Esc to open Task Manager.
Select Startup apps.
Right-click unneeded items and select Disable.

Adjust visual effects for performance

Select Start, type Adjust the appearance and performance of Windows, and open it.
On the Visual Effects tab, select Adjust for best performance.

Set power mode to Best performance (if on AC power)

Select Start > Settings > System > Power & battery.
In Power mode, select Best performance.
- Note: This increases power use and heat, especially on laptops.

Optimize drives

Select Start, type Defragment and Optimize Drives, and open it.
Select the system drive and choose Optimize.

Check which processes cause lag

Press Ctrl + Shift + Esc to open Task Manager.
On Processes, sort by CPU, Memory, and Disk to see what spikes when lag appears.
Right-click and End task for apps that are clearly not needed (do not end system processes).

Reduce notifications and close unused apps

Go to Start > Settings > System > Notifications and turn off notifications for apps not needed.
Close unused apps and browser tabs; if lag continues, select Start > Power > Restart, then open only the apps needed.

If the system is still lagging after these steps, the issue may be related to specific apps or hardware limits; monitoring Task Manager while lag occurs will show which component (CPU, memory, disk) is actually under stress.

References:

Answer 2

Hello, thank you for reaching out to Microsoft Q&A.

Is your hard disk full? Have you checked how much RAM and CPU are being used in Task Manager during normal workload?

To make the system more responsive overall, make sure you free up temporary files on the system and clear as much space as possible on your Local Disk (C:). Then, disable any unnecessary startup programs from Task Manager and restart your computer to see if there are improvements in the system’s performance.

To free up space, you can use the Disk Cleanup tool:

Search for Disk Cleanup in the search bar on the taskbar and press Enter.
Select the system drive Local Disk (C:) and click OK.
Select Temporary files and any other items you want to remove, then click OK.

You can also go to Settings > System > Storage > Storage management.

Under Storage management, Windows should automatically show you the cleanup recommendations available for your device.

If the issue happened recently, you can also run a system restore method to restore your PC earlier point in time.

Let me know if you still need more help.