1. Open Device Manager.
2. Follow the instructions in the preceding procedure to uninstall the device.
3. If you are prompted to restart the computer, follow these steps:
Plug in the device and then restart the computer. The device will be detected and reinstalled after Windows restarts.
Follow any instructions on-screen to complete installation.
4. If you are not prompted to restart the computer, follow these steps:
In Device Manager, in the Action menu, click Scan for hardware changes.
Follow the instructions on the screen.
When your computer runs slower and slower or programs/browsers take longer time to reply, it is time to clean your computer now, a basic method to clean computer is disk cleanup, steps below will tell you how to clean and speed up your pc.
1.Click Start button on the left bottom of taskbar, type clean in the search box.
2.Click on Disk Cleanup, a new window appear, C disk was selected by default, click OK.
3.Disk Cleanup window shows up, system will self-scan, after the scan process, a new window will appear.
4.There will be a files list, temporary files and other files are listed and checked, un-check options you want to delete. Click OK to clean and a confirm window will pop up, clicking Delete Files to complete the clean process.