Hi,
Sorry for the late reply. Let me assist you with your concern.
There is no Backup and Restore on Windows 8/8.1. This feature is replaced with File History. For more information refer this Microsoft article:
What happened to Backup and Restore?
http://windows.microsoft.com/en-us/windows-8/what-happened-to-backup-restore
Errors related to ACPI is due to drivers, connection error between your hardware and motherboard. Advanced Configuration and Power Interface (ACPI) is a part of the BIOS and the operating system. The presence of ACPI in the BIOS on a given system determines whether operating systems of the Windows can make full use of features such as Power Management and Plug and Play (PnP).
I would suggest you to follow all the troubleshooting steps suggested from my previous post. Also try these steps and check if it helps.
Method 1: Run the Check disk and check if you have any bad sectors in hard drive.
- Go to Start Page.
- Type: CMD
- The Apps page will come up.
- Right click command prompt
- Click “Run as Administrator” on the bottom pane.
- If you get the User Account Control prompt. Click Yes to continue.
- At the Command Prompt, type Chkdsk /r /f
Important: While performing scanning on the hard drive if any bad sectors are found on the hard drive when scanning tries to repair that sector if any data available on that might be lost.
Method 2: If issue persist, perform Reset PC as last option. Make sure you run Reset PC after Check Disk to prevent the similar issue.
How to refresh, reset, or restore your PC
**http://windows.microsoft.com/en-IN/windows-8/restore-refresh-reset-pc**
Note: I highly recommend backing up all of your important files and folders onto an external storage device before attempting any type of OS repair or upgrade.
Reset PC disclaimer: All of your personal files will be deleted and your settings will be reset. All apps that you installed will be removed. Only apps that came with your PC will be reinstalled.
Hope this helps. If you need further assistance with Windows, let us know and will be glad to help.