Due to various internal and external factors, partitions can get corrupted or damaged leading to data loss. Let us look into the main reasons for partition damage. 1. Improper shutdown of computer or power failure. Every time your computer shuts down improperly, it may not result in partition damage but if your system is in the middle of a write cycle at the time of improper shutdown, it can cause issues and lead to corrupted partitions.  2. Errors while performing disk management operations & third-party tools. Improper sizing of partitions or errors while performing disk management operations can cause partition damage and loss of data. Certain third-party disk management tools can also modify the structure of the drive and lead to partition damage. 3. Bad sectors Yet another common reason for partition damage are bad sectors on the hard drive. Bad sectors are usually due to logical errors or due to physical damage to the disk 4. Damaged partition table A partition table is a table located in the first sector of a hard disk that contains details of all partitions like the size and addresses of partitions. Corruption in this table can make the whole drive unreadable and cause partition damage.