Why does System Restore turn off the remaining capacity of the hard drive and gradually decrease?

Partition Magic resizes the partition table in this process by changing the partition table and then copying the previous data to the new resized partition location. If it crashes at this time, the newly created partition table has not yet been recognized, so the partition you adjusted is lost, and only the data in it that was being copied before the crash will be lost. There are two methods, one is more professional, to know the details of your hard disk partition before you adjust, manually repair the previous partition table, with your level I am afraid it is difficult to achieve, you can turn to professional hard disk data recovery, the cost depends on your city and the size and importance of the data.

You can also start DOS with a disc by yourself, enter fdisk MBR to restore it, it may be good, I hope it is smaller, because I think your hard disk is not only MBR broken, DBR and FAT tables should also be broken.

There is another method, this is more complicated, and the most time-sensitive and patient, that is, to plug your hard drive to a computer, use recovery software to recover data, the software can use easyrecovery has Chinese, you can understand at a glance. The important thing is not this, it is that your hard drive partition is gone, and EasyRecovery can't see your partition, so how does it find your files! It can only do full recovery, you know what it thinks?!

Can only do a full disk scan, I'll give you an example, for example, 80G hard disk, your hard disk is 80G, don't say find, full disk scanning without writing data is about 45 minutes, it can find not only your lost files and previously deleted files, 80G hard disk can probably find more than 100G data, of course, there are a lot of mistakes in the middle, and it is not good to make, but you must recover all before you can know that it is useful, because the software is not completely looking for files, That is to say, it is likely to be far from the file you previously named, and it will take a long time to find the estimated one. There is another kind of desperate, the two partitions you adjusted before are not deleted, and then re-establish a new large partition, and then use quick formatting, and then use easyrecovery software to retrieve the lost files of a single partition, if it is 20g of things, it will be two or three days to get it back, but the disadvantage of this method is that the recovered files are incomplete, there will be some of the loss that can not be found permanently, the loss is not necessarily that part, and once this is operated, then find a professional to repair, It will be difficult then. As a non-professional data recovery enthusiast, I can only give you this help, and my experience in repairing hard drives is still very limited.

First of all, you have to know what operations have been done to make it smaller, for example, when you use ghost to engrave the hard disk, this kind of problem is easy to appear, you can use the pq software to see the capacity of your hard disk, add up the free space.

This is not a decrease in the capacity of the hard drive.

Due to different calculation methods, the actual capacity of the hard disk purchased is generally smaller than the marked capacity.

For the convenience of calculation, hard disk manufacturers often calculate 1GB 1000MB, 1MB 1000KB, and 1KB 1000B.

But the computer calculation is calculated as 1GB 1024MB, 1MB 1024KB, 1KB 1024B.

Therefore, the capacity displayed in the computer will be smaller than the capacity indicated when you bought it.

So if you buy a 20G hard drive, the actual capacity must be, you can do the math.

As for the reasons you said about the corrupted installation files, there are many reasons that can be due to data loss caused by bad sectors of the hard drive. You can do a thorough check of your hard drive.

It is normal for a hard disk of 500 to become 460g, which is explained as follows:

Hard disk is an important part of the personal computer to store data, and its capacity determines the capacity of the personal computer to store data, which is one of the first parameters that users should pay attention to when buying a hard disk.

The capacity of hard disks is in MB (megabytes) and GB (gigabits), the early hard disk capacity is low, mostly in MB (megabytes), in September 1956, IBM made the world's first disk storage system only 5MB, and now the rapid development of hard disk technology hundreds of GB capacity of hard disks have also entered the hands of home users. Hard drives are available in capacities of 40GB, 60GB, 80GB, 100GB, 120GB, 160GB, and 200GB, and hard drive technology continues to evolve, with larger capacities to come.

After buying a hard drive, careful people will find that the capacity of the hard disk in the operating system does not match the official nominal capacity, it is less than the nominal capacity, and the larger the capacity, the greater the difference. A hard drive with a nominal 40GB is only 38GB in the operating system; An 80GB hard drive is only 75GB; A 120GB hard drive is only 114GB. This is not caused by manufacturers or distributors deceiving consumers with shoddy products, but by the different calculation methods of hard disk manufacturers and operating systems, and by different unit conversion relationships.

As we all know, binary is used in computers, so that the calculation of capacity in the operating system is based on 1024 as a base, 1KB per 1024 bytes, 1MB per 1024KB, and 1GB per 1024MB; In terms of computing capacity, hard disk manufacturers use every 1000 as a base, 1KB per 1000 bytes, 1MB per 1000KB, and 1GB per 1000MB.

Take a 120GB hard drive as an example:

Manufacturer capacity calculation method: 120GB 120,000MB 120,000,000KB 120,000,000,000 bytes.

Converted to operating system, 120,000,000,000 bytes 1024 117,187,500kb 1024 114,.

At the same time, in the operating system, the hard disk must also be partitioned and formatted, so that the system will also occupy some space on the hard disk for system files to use, so there will be a difference between the hard disk capacity and the nominal capacity displayed in the operating system!!

The hard disk manufacturer uses 1000MB = 1GB, while the system uses 1024MB = 1GB.

Therefore, there is a coefficient between the nominal capacity and the actual usable capacity.

500* is approximately equal to 465

It may be that after the repair, a part of the disk of your hard disk is broken, and the broken part of your hard disk will not be counted in your partition after repair, so as to ensure that your data will not be lost in the future, you think, if you save your data to the disk partition that has been broken, do you rest assured?

It is very likely that your hard drive has bad sectors, and then remediate it to block out the bad part so that it will not affect your normal use.

See in the BIOS that the capacity becomes. Hooked to a normal system only one C disk is displayed, double-click prompts not formatted. A large amount of data is lost. With WinHEX and PQ tools you can only see the space.

After searching on the Internet, it was learned that it was necessary to use MHDD and PC3000 to recover, and the operation was complicated. Since I was not familiar with these two software, I decided to look for a breakthrough in the familiar tool software first.

Start with the Pink Leaf Toolbox Disc Edition and enter DOSStatus of the toolbox, launch the diskgen tool to see all the other space missing. Due to the failure of the mouse, I had to use the keyboard to operate, the arrow keys and the tab key have a role, but I can't open the menu with the combination of keys, I thought it was caused by the damage of the hard disk, and later found out that it was caused by incorrect operation.

Use another boot disc to go into the DOS status toolbox and find that launching a software called BootManager (which is a Windows interface) can also see all the other space lost. After fumbling with the keyboard, I finally created a logical partition of the lost space, but I didn't format it, worried that formatting might cause irreparable damage to the data.

Boot from the normal hard disk, launch the Red Leaf Toolbox on the hard disk, scan the bad disk with the disk partition table doctor tool in it, the software finds the error twice, let the software help repair it automatically. However, only one disk partition is scanned. According to the prompts of the Disk Partition Table Doctor tool, change the read/write mode of the hard disk to LBA mode in the BIOS to continue scanning the partition.

A miracle finally happened. All the missing D, E, and F drive partitions were found. Let the software help rewrite the partition table automatically.

Use the CD-ROM version of the Red Leaf Toolbox to boot into Windope, enter the D, E, and F disks, and the data inside is intact.

There is an unpartitioned space between disk C and salt D seen by entering PQ, create a new partition of this unpartitioned space, display it as G drive, merge C with G drive, and quickly format it.

Enter the Momiji DOS toolbox, start Diskgen, and finally know the key combination to open the menu after groping, use the keyboard operation to rewrite the master boot record, and save the C disk. Enter the DOS state, start the original GHOST software of the E drive, and restore the universal clone file saved by the E drive to the C drive. The reason why the original C drive image file is not restored is that the recovered partition table and sector 0 will be different from the original C drive image file, which may lead to extraneous problems.

After cloning, reboot from the hard disk and enter the Windows system smoothly. So far, the hard disk has been successfully troubled and all data has been successfully recovered.

In this lesson, I will share with you a hard drive data recovery, in fact, many times the hard disk damaged data can be recovered, as long as you find a way.

A few suggestions, I don't know if I can help:

1.Check all processes to see if any processes are taking up a lot of CPU time or memory.

2.After opening the process table, manually open the column of reading and writing data on the hard disk (at the end of the view menu, and then select the column you want), and check which process is reading and writing to the hard disk in large quantities.

3.If you can find the process name through the above, it will help you pinpoint which program is likely to take up a lot of space on your hard drive.

Considering that your computer can automatically recover space after restarting, it is not like a situation where a program writes a large number of log files, but more like a situation where temporary files are generated. Of course, you can also check whether the virtual memory set manually is too large. may affect.

That's because you're using a computer. When you use a computer, you need a certain amount of space for it. Like what. Your computer if there is no space on the C drive. The computer will be very slow. It's the same thing.

Otherwise, it will always occupy the hard drive!