Thank you for joining the Intel Community Support.
First, I would like to check if the version of Intel® RST you are using is supported by your chipset and operating system. Please run the folling tools and attach the reports.
1. Run the Intel® System Support Utility. Follow these steps.
1.Download the Intel® System Support Utility and save the application to your system.
2.Open the application and click Scan to see system and device information. The Intel® System Support Utility defaults to the Summary View on the output screen following the scan. Click the menu where it says summary to change to Detailed View.
3.To save your scan, click Next and click Save. You can save the file to any accessible location on your computer.
4. Attach the report to this thread.
2. Intel® RST report.
1.Open the Intel Rapid Storage Technology user interface (Start > Programs > Intel > Intel® Rapid Storage Technology).
2.Click the Help icon.
3.Click the System Report icon.
Thank you for your response.
First, it is worth mentioning that your system manufacturer has validated Intel® RST up to Windows 8.1 64-bit for this computer. In other words, the version of Intel® RST you installed is not supported by your hardware/software (Chipset/Operating system).
My recommendation is that you can install one of the operating systems your system manufacturer has validated for your computer in order to get the best performance and data reliability. Find below additional information:
Operating system > Version > Driver-Storage > Intel Rapid Storage Technology Driver validated.
Then, you should be able to set up RAID 1 in your system without losing any data.