Method 1:
Please follow the steps to perform System maintenance check to improve performance of the computer:
a) Press Windows and x key together and select Control Panel.
b) Click on Troubleshooting.
c) Click on View all on the left side panel.
d) Click on System Maintenance and follow the onscreen instructions.
Method 2:
I would suggest you to refer to the link to improve PC performance:
“Ways to improve your PC’s performance”
http://windows.microsoft.com/en-IN/windows-8/improve-pc-performance
You can also refer to the link to improve the computer’s performance by optimizing the hard drive.
Here’s how you can do so:
“Improve performance by optimizing your hard drive”
http://windows.microsoft.com/en-in/windows-8/improve-performance-optimizing-hard-drive
Important: Data available on bad sectors might be lost when chkdsk tries to repair your hard disc.
Method 3:
I would suggest you to boot the computer into Safe Mode and check if you experience slow performance.
You can refer to the steps to do so:
Step 1:
Please refer to the link to boot the computer into Safe Mode:
Windows Startup Settings (including safe mode)”
http://windows.microsoft.com/en-US/windows-8/windows-startup-settings-including-safe-mode
Step 2:
If the issue does not occur in safe mode, then you may boot the computer into clean boot state and check if any program or application might be the reason behind this issue.
You can refer to the link to boot the computer into clean boot state:
“How to perform a clean boot to troubleshoot a problem in Windows Vista, Windows 7, or
Windows 8”
http://support.microsoft.com/kb/929135
Note: Please go through the section: How to reset the computer to start as usual after
troubleshooting with clean boot of the Kb article to boot the computer in normal startup after fixing the issue.
