According to your description, I suggest you refer to the following information:
Your problem may be caused by a hard disk failure. It is recommended that you enter the bios to detect the hard disk. The detection method is as follows:
When the HP (or COMPAQ) interface appears at startup (or restart), keep clicking F 10 to enter the BIOS, select Diagnostics, and run the hard disk self-check to detect the hard disk. The whole process takes about 30 to 60 minutes, and the specific detection time is also related to the capacity of your hard disk. During the inspection, it is recommended that you connect the external power supply and keep the power supply.
(1) If there is no error in the hard disk detection process and all the results pass, then there should be no problem with your hard disk, and there is probably a problem with the system. It is recommended that you change another pure version of the system installation CD after saving the data file and try to reinstall the operating system.
(2) If there is an ERROR on the screen, such as error or FAIL, there is something wrong with the hard disk. It is recommended that you send your laptop to the nearest HP Gold Service Center for processing.
You can check the nearest HP Gold Service Center through the following website:
/zh/support-drivers/e support/as CPPS . html
I hope the above reply can help you.
If the above information can't solve your problem, you can log on to www.hp.com.cn/chat,, the online chat room of HP Network, and ask an online engineer to help you solve the problem further. More product information is available in www.hp.com.cn/800..