If your laptop has both HDD and SSD installed at the same time (for example: use SSD to load and run the operating system, yet use HDD for storage purpose), then you've probably encountered and endured the bother that HDD makes a clatter every few seconds (that's usually 1, 3, or 10 seconds). Especially if you're using Western Digital, Seagate or Hitachi's hard drive products.

In the first place, only the users who have lost data can deeply experience and realize the importance and necessity of backuping data on a regular basis. And the data backup software have been so inundant that we have almost no chance to verify and compare them one by one, so that we can pick out the best one. However, I suggest you put AOMEI Backupper at the top of the list of the data backup software you're going to test.

MiniTool Partition Wizard is capable of direct performing a variety of nondestructive operations (does not destroy the data stored in hard drive) to disk partitions without restarting the computer. This includes: modify partition size, copy/clone partition, create/delete/format partition, merge/split partition, move/extend partition, change the drive letter, set active partition, convert the format/file system of partition, hide partition, copy protected data on disk, and so on.

Bad sector (bad track) is one of the most common failures of mechanical hard disk (HDD), which usually characterizes hard disk reads/writes slow, system prompts "... I/O error", program gives "cyclic redundancy check (CRC) error", etc. In these cases, we need use some specially designed tools to correctly detect whether our hard disk has had bad sectors or not, and nip in the bud.

The causes of loss of data are nothing else than the following several common ones: accidentally deleted files/folders; formatted some partition or the entire hard drive (which often happens during the reinstallation of OS); due to wrong operations (unexpected or forcible shutdown, direct or forced pullout, etc.), the invalid partition table error occurred in hard disk, USB flash drive, SD Card and other storage devices, so that they couldn't be identified or just identified as RAW format.