The existence of data read/write errors on a hard drive can be determined from the following number of channels: 1. If the user is using WINDOWS NT/2000/XP, when a data read/write error occurs, the system will record it in the system log. 2. If the user is not using one of the three operating systems listed above, symptoms of data read/write errors may include frequent errors when copying files or constant prompts that files cannot be deleted when attempting to delete them. When users see these situations occur, they should be cautious because there may be data read/write errors happening on the hard drive.
So why do data read/write errors occur? Generally speaking, the most likely reason is that the hard drive has developed bad sectors. The larger the area of bad sectors, the higher the probability of data read/write errors. In addition, hard drive virus infections and hardware failures could also lead to data read/write errors.
When users suspect or confirm that their hard drive has data read/write errors, they can follow these steps:
1. Use the SCANDISK and CHKDSK commands to check for logical errors on the hard drive. If a large number of red 'B' symbols appear during the hard drive scan, it indicates that the hard drive has bad sectors. Generally, NORTON Disk Doctor can be used to check and repair these issues. Additionally, it's recommended to use disk tools provided by the hard drive manufacturer. It's not advisable to perform a low-level format on the hard drive. When encountering small-scale bad sectors, the hard drive can be re-partitioned, placing the bad sector portion in a logical partition. After partitioning, the logical partition can be deleted to allow normal usage. Users can also use PQMagic to hide this partition.
2. Perform a thorough virus scan using antivirus software.
3. If the above methods don't work, you can try using the hard drive health status inspection tools provided by the hard drive manufacturer to conduct a comprehensive examination. These tools include IBM DFT (Disk Fitness Test, Disk Health Check), WD Data Lifeguard Tools (Data Guardian Tool), Maxtor Powermax, Seagate SeaTools, etc.
Original article from Hefei Data Recovery Center: http://www.cndr.cn/wenda/11910.html