My IBM is 80G, why do I use less than 30G but it says that there is only 10G of memory?!

Find a software and look at it

PQ is a software for partitioning with a graphical interface. It can see so how your hard drive is being used.

With this, you can see the hidden partition of the system recovery. Don't move this area. You can do whatever you want in other areas.

Some repair points will hide a part of the hard disk capacity as a hidden drive, which is used to store backup files, so that they can restore it for you in the future.

And you can ask them to help you reinstall the system once, and tell them that you don't want to restore and ghost with one click! If they insist on not helping you do it, you can call ** to complain IBM is indeed a bit of that after-sales service now, and it is not okay not to complain.

Halo, you install a partition tool to repartition it, the hard drive will not be lost.

Maybe there is a problem with the partition, it is recommended to repartition, or it may be a virus, and the virus takes up a lot of space.

My computer right-click management - enter disk management, look at the total capacity of the hard disk, and then look at how many areas are divided, what is the size of each area; According to what you said, it may be that the people in the repair station only gave you a 40g partition, so it is recommended that you go to Disk Management to see it, and it would be good to re-divide it if you didn't divide it.

You tell them that it is not a one-click recovery for you to make a system, if their people will restore it with one click, and they will not make the system, you can find a computer company to spend some money and let them give you a system from the system, or find a partition software to regain the lost space. Ay! IBM's technology will really save trouble!

1. Is it licensed and new? If it's old, you may have been scammed. There are tools the size of a flashed hard drive.

2. IBM's hard disk computing is different from general computing, the former is 1g=1000m, and the latter is 1g=1024m.

3. Clean up the system.

There is also a part that is hidden for backup.

It is recommended that you repartition the hard drive so that it can be repaired.

First of all, you look at whether the restore function of windows is turned on, if it is opened, it needs to occupy a part of the space, and secondly, you look at whether your virtual memory is set in this partition, if it is, it will also occupy memory

Remember.

Show the hidden file and take a look at it again, is there a little secret hidden? If not, export your useful stuff to other drive letters, and then format the D drive, and it should be fine.

The mobile phone is 16G, only used 10G, the old display memory is insufficient, because the actual capacity of the mobile phone itself is about, the system, pre-installed programs and cache files occupy about, the remaining about, with 10GB will show insufficient memory.

On average, the 16G version of smartphones on the market has taken up about a lot of storage space in advance. There are four reasons for this:

1.Algorithm problems with different memory capacities for hardware and software. The normal algorithm of memory is "binary", that is, 1GB = 1024MB, while the algorithm of mobile phone manufacturers is "decimal".

1gb=1000mb。So 16*1000*1000*1000 1024 1024 1024= GB.

2.System occupancy. The operating system itself will occupy the storage space of the smartphone, and after the system is installed in the mobile phone, it will produce hundreds of MB or even the occupation of the G, and the operating system is the program necessary for the normal operation of the mobile phone (including ROM), which is a hidden space occupation.

3.Pre-installed programs. A smartphone, which circulates from the manufacturing plant to the consumer, usually goes through layers of transit, and its storage space is encroached upon by manufacturers, operators, and channel providers through a large number of pre-installed and non-uninstallable applications.

4.Cache files. In the process of using mobile phone applications, users will generate a large number of cache files in the system, such as **, fragments, installation packages, etc., which will remain in the mobile phone, continue to accumulate, and gradually encroach on the user's mobile phone storage space.

First of all, how do you know that the hard disk has 50G, is the total capacity, my computer has C, D, E, F, how many drive letters do you have, and whether there are more than 40G in it? If not, then you may not have finished partitioning the partition by going into Disk Management

When encountering this kind of problem, the easiest way is to format it, in the reinstallation system, generally speaking, it is caused by a virus, and sometimes it can't be cleaned, so it is directly reinstalled.

<> WindowsImageBackup Find this file --Tools Folder Options View Hide Protected System Files (recommended) Uncheck this before you will find it. You will find that this file is surprisingly large, often with dozens of gs! So this document is the culprit!

This is very normal.

It may be that the hard drive is worn.

It's also possible that there are hidden files.

Sometimes a lot of things are invisible, if you want to solve it, back up the files inside, and then format the disk.

Doing disk cleanup and defragmentation also plays a role.

To know what those things are, you click on the folder options, and remove the checkbox before not showing hidden files.

What operating system are you installing, this situation you said generally does not happen, and the physical properties of the hard disk will not change!! It is possible that the partition table is corrupted and the other 20G drive letters are missing, you can scan the hard drive with diskgen to get back the other lost partitions!!

Open the tools on my computer - Folder Options - View and check the front of the hidden system files Click to show all hidden files, and delete all the files in the system what restore to see!

When the hard disk partition is installed, the system will be less than 3 to 5 g The rest should be your system used The next 360 has a system junk cleaner in it, just clean it up.

Another attribute of the file is the size of the disk space occupied, which is mainly caused by the minimum storage space (cluster) of the hard disk, the 50G hard disk is generally a fat32 partition, the cluster size is 4096 bytes (selected when formatting the hard disk partition, and can not be changed later), even if the file is only 1 byte, it must occupy 4096 bytes of disk space, if the file has 4100 bytes, it will occupy 8192 bytes of space Your hard disk may be too many small files, so that the total file size is 20g, But it used 30g of disk space.

I guess your 50G is a C drive, right? And with Vista? If so, then I'll be able to solve it.