What should I do if the capacity of the hard disk is greatly reduced? Please help me

If you only recognize 60G under the BIOS, you can refresh the BIOS to see, if it doesn't work, you have to find a hard disk as big as your hard disk, and engrave it, and this kind of problem usually occurs only when the motherboard BIOS error occurs.

Are you sure that drive of yours is 180g?

What you said before was from the plate

Isn't it 180g that you see the main disk and the slave disk together?

Because I work in a computer company, I haven't heard of a 180g hard drive.

If you are confident that your hard drive is 180g, copy the important data on the drive first.

Then delete all the hard drive partitions and format them again.

You use BIOS in the BIOS to find your slave disk to confirm whether it is 180G

If the number in the BIOS is not what you think, then either the hard drive is broken, or it is not the one you used to be.

You can also find a commonly sold installation disk on the market, which has partitioning tools, basically have Chinese tips, you can try to repartition.

Use DM to repartition and format the hard drive, I think it should be fine, if it doesn't work, use DM low-level format, it should be able to find!

I agree that the hard disk of 180g has never been heard of on the 3rd floor.。。。

120 160 200 300 are all there, I haven't heard of 180 ...

Let's take a look at it in the PQ or DM grid! It's best to go low!

Delete All Repartition.

It can be said that this phenomenon is a normal phenomenon, and it can also be said to be the result of a misunderstanding of the hard disk, and then let's analyze how the partition of the hard disk and the capacity of the hard disk are calculated.

At present, there are several types of lattice methods, such as FAT12, FAT16, FAT32, NTFS, HPFS and Linux, etc., and the smallest unit of partition is Co, for example, if the FAT16 mode is used, the cluster is 32KB, and if the FAT32 mode is used, the cluster is 4KB. A cluster can only be allocated to one file (even if the cluster has 32 KB of files and a file uses only one byte), which inevitably leads to a waste of disk space (unused capacity in the cluster is wasted). Theoretically, the average disk space wasted by each file is half of the cluster capacity, that is, if the capacity of a cluster is 4kb, then each file is wasted 2kb, if the capacity of a cluster is 32kb, then the waste of capacity for each file is 16kb, for example, a 2G hard disk is formatted in FAT16 mode, then its cluster is 32kb, and each file will waste 16kb, if there are 20480 files on the disk partition, The wasted space is 20480 16 1024 = 320MB.

If the same is the same as the FAT32 formatting, its cluster is 4kb, in this way, the average waste of each file is 2kb, if there are still 20480 files on the hard disk, the wasted space is 20480 2 1024=40m. One wastes 320 MB and the other wastes 40 MB, so now you know which way to use the grating to waste less space.

Mathematically, 1g=1000m, 1m=1000k, 1k=1000

In the operating system, it is considered 1g=1024m 1m=1024k 1k=1024

So the actual capacity of a 100M hard drive formatted out is:

So you will find that the actual capacity of the original 500g hard disk is approximately:

Hard drive manufacturer's standard:

500gb=500，000mb=500，000，000kb=500，000，000，000byte；

Algorithm of the operating system:

500gb=512，000mb=524，288，000kb=536，870,912，000byte；

The capacity shown in the operating system is:

2.MacBook hard drive capacity is small? Install the Windows system into the portable hard disk (USB flash drive) to save your MacBook from running out of space MacBook Apple Laptop Dual System.