Acer Aspire M5-581G User Manual page 42

3. Click on Contents. A list of software and device drivers opens.
4. Click on the install icon for the item you want to install, then follow the
on-screen prompts to complete the installation. Repeat this step for
each item you want to reinstall.
Returning to a previous system condition
Microsoft System Restore periodically takes 'snapshots' of your system
settings and saves them as restore points. In most cases of hard-to-
resolve software problems, you can return to one of these restore points
to get your system running again.
Windows automatically creates an additional restore point each day, and
also each time you install software or device drivers.
42 - Recovery