Ya you can do a system restore in XP also,

Try to restore the system to a previous date before this problem occoured, it may resolve the issue its creating,to restore follow these process:

Click on start > Click on all programs > Click on accessories > Click on system tools > Click on system restore.

System restore will start > Choose "Restore my computer to an earlier time"> choose next > choose a date in which you have not yet faced the problem > Click next

System will restart after restore process.

See if this works, else reply for further follow-up.

What is the exact make and model of the Acer?

Try this and check if the problem persists:

Download the application software from here, according to your model: http://support.acer-euro.com/drivers/downloads_gd.html

Now uninstall the application.

Install and run ccleaner from this link: http://www.filehippo.com/download_ccleaner/

Reboot the computer.

After rebooting the computer, just try to install the latest application downloaded in the previous step.

See if this helps.

Here is a better link for the drivers: http://support.acer-euro.com/drivers/notebook/as_5630.html

You can also see this picture on how to choose operating system from the previous link I gave:

	View Full Image

Hi,

First of all unzip the driver into a folder. Now done follow this:

Go to device manager > right click on the camera and click uninstall.

Install and run ccleaner from this link: http://www.filehippo.com/download_ccleaner/

Reboot the computer.

After rebooting the computer, just the computer will find new hardware and add new hardware will start. Just follow the normal installation process.

See if this helps.