Please confirm whether your operating system is genuine because it is most likely that your Windows does not pass "Windows Genuine Advantage Validation". According to Microsoft official web page, system will start to verify your operating system after Windows Update. If your PC fails genuine validation, you may occasionly receive a message reminding you that "Windows might not be genuine". Besides, desktop wallpaper will change to a plain black background. You may reset desktop background to a favorite wallpaper, but it will reset to this plain black background every 60 minutes.
For more detail, you may refer to Microsoft official web page:
To solve your problem, please go to BIOS to reset "Boot delay time" or "IDE delay time" to a longer one or give a warm boot. Why is that? Simply say it’s because HDD detection time of BIOS is less than or equal to the time that HDD needs to be ready. Therefore the BIOS sometimes responses the failed message after detecting unready HDD.
If “CPU Smart Fan” is enabled, the CPU fan speed will spin according to the CPU’s tempreature The higher the tempreature, the faster the speed and vice-versa. In the meantime if “CPU Fan Fail Warning” is also enabled, the speaker/buzzer on the PC’s chassis will start beeping when the CPU Fan is spnning at a low speed or come to halt because of low cputempreature due to the “CPU Smart Fan” technology. To avoid this from happening, it is recommanded to first disable “CPU Fan Fail Warning” option and then enable “CPU Smart Fan” option.