The reason why the 128G USB flash drive becomes 32G after making a boot disk?
When a 128G USB flash drive becomes 32G after making a boot disk, it may be due to a number of reasons. Here's a look at the phenomenon to help you understand the causes and give possible solutions.
First of all, we need to understand the basic structure and storage principle of USB flash drive. A USB flash drive, or USB flash drive, is a storage device that connects to a computer through a USB interface. It contains one or more flash memory chips that store data through a cell. Each memory cell can store one or more binary bits, which are combined to form blocks, which in turn are combined into larger units, such as sectors or clusters.
In the process of making a boot disk, a USB flash drive may go through the following steps:
1.Formatting: In order to make a startup disk, the USB flash drive is usually formatted. During the formatting process, the file system of the USB flash drive will be redistributed, and some hidden files and system files will also occupy a certain amount of space.
2.Partition table creation: During the process of creating a boot disk, a hidden partition will be created for storing boot files. The size of this partition is usually a few hundred megabytes to tens of terabytes.
3.Write data: Boot files, system files, and other necessary data will be written to the USB flash drive.
So, why does a 128G USB flash drive become 32G?
1.Formatting problem: If there is a problem during the formatting process, the actual usable capacity of the USB flash drive may be reduced. For example, if you select the wrong file system or set the formatting parameters incorrectly, the capacity of the USB flash drive may be reduced.
2.Partition table issue: When you make a boot disk, the USB flash drive creates a hidden partition to store the boot files. The size of this partition is usually a few hundred megabytes to tens of terabytes. Due to the existence of this partition, the actual usable capacity of the USB flash drive will be reduced.
3.Data Writing Error: If there is an error or data corruption while writing boot files and other data, it may result in a decrease in the actual usable capacity of the USB flash drive.
4.Physical damage: If there is physical damage or quality problems in the USB flash drive itself, it may also lead to a reduction in its actual usable capacity.
For the above reasons, you can try the following solutions:
1.Check the formatting parameters: Make sure that you have selected the correct file system and formatting parameters when you format the USB flash drive. For example, for Windows operating systems, FAT32 or NTFS file systems are usually chosen for formatting.
2.Check the partition table: Make sure that the hidden partition created while making the startup disk is correct and error-free. If there's a problem with the partitioned table, you might need to recreate or repair the partitioned table.
3.Check Data Writes: Make sure there are no errors or data corruption when writing boot files and other data. If there's a problem writing data, you may need to rewrite or repair the data.
4.Check the physical condition of the USB flash drive: If the USB flash drive has physical damage or quality problems, you may need to replace it with a new USB flash drive or seek professional repair services.
In a word, when a 128G USB flash drive becomes 32G after making a boot disk, it may be due to a variety of reasons. By checking the formatting parameters, partition tables, data writes, and the physical status of the USB flash drive, you can try to find the cause of the problem and fix it. At the same time, in order to avoid similar problems, it is recommended to back up important data before making a boot disk, and choose a USB flash drive and a maker with reliable quality.