My Windows 7 has started to lag, and I think that it is due to errors in the disk. Are there ways to check disk error Windows 7 on my computer?
You can check the disk from the command prompt or My Computer. I have given the steps for command prompt.
It will scan and diagnose your disk.
When your computer lags, it doesn’t always mean that there is a problem with the hard disk. The drag is sometimes caused by too much fragmentation on the hard drive. When your computer is slow and you have several drives, the drive that needs attention is the system drive or drive C. This is the drive where the operating system or Microsoft Windows is installed and running.
The best way to improve the performance of your machine is to perform maintenance. First, download PC Tools Performance Toolkit. Follow the instructions to download and unpack and then install it. Once installed, start PC Tools, go to “Recovery” tab, and click “Repair Drives”. On the next screen under “Select Drive Operation”, select “Surface Scan” and check “Perform on reboot”.
Select drive C from the list and click “Start” then “Continue”. Close PC Tools and then restart your computer to begin checking your drive for errors. Next, open your web browser and go to Download CCleaner then download and install the free version. Once installed, start CCleaner and clean your system.
After this, start PC Tools again then go to “Privacy” tab and run all the tools except “Bleach Disks” and “Shred Files”.
Next, go to “Performance” tab and click “Clean Your Registry”. On the next screen, make sure “Complete Registry Scan” is selected then click “Start Scan”.
Next, still in “Performance” tab, click “Compact Your Registry” then click “Start” on the next screen. Follow the instructions then restart your computer. After booting, start PC Tools again then select “Performance” tab. Click “Defragment Disks”. On the next screen, make sure “Deep Defragmentation” is selected. Select drive C from the list and click “Start”.
This may take longer depending on the size of the drive and level of fragmentation. Once it is finished, your system will have an improved performance.
