How to deactivate disk write caching to minimize data loss due to power outage?

Enabling disk write caching may increase operating system performance. However, it can cause data loss or corruption if a power outage occurs.

Enabling or disabling the disk write caching

• Right-click My Computer, and then click Properties
• Click Device Manager
• Click the plus sign (+) next to the Disk Drives branch to expand it
• Right-click the drive on which you want to enable or disable disk write caching, and then click Properties
• Click the Disk Properties tab
• Click to select or clear the Write Cache Enabled check box as appropriate
• Click OK

Note: The article was copied from the Microsoft Support website.