Diskgenius is a hard disk partition and data recovery software. It is developed on the basis of the original DOS version. I'd like to introduce some tips for using disk genius. I hope you like it.
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Disk genius usage reference
Disk genius
Disk genius function introduction
After nearly two years of painstaking "cultivation", disk genius's "skills" are indeed more extraordinary. It not only provides basic hard disk partition functions (such as creating, activating, deleting and hiding partitions), but also has powerful partition maintenance functions (such as partition table backup and recovery, partition parameter modification, hard disk master boot record repair, partition table reconstruction, etc.); In addition, it also has practical functions such as partition formatting, partition lossless adjustment, hard disk surface scanning, sector copy, and complete removal of sector data. Although disk genius is more powerful, its figure is still "slim", only 143KB.
I Main functions and features of disk genius
1. Imitating windows pure Chinese graphical interface without any Chinese character system support, it reveals the detailed structure of partition table in the form of chart and supports mouse operation;
2. Provide more flexible partition operation than fdisk and support partition parameter editing;
3. Provide powerful partition table reconstruction function to quickly repair the damaged partition table;
4. Support fast format of fat / FAT32 partition;
5. Directly adjust the size of fat / FAT32 partition without destroying data;
6. Automatically reconstruct the damaged hard disk master boot record;
7. In order to prevent misoperation, for simple partition operation, only change the memory buffer before saving without affecting the hard disk partition table;
8. It can view any sector of the hard disk and save it to a file.
9. Fat / FAT32 and NTFS partitions can be hidden.
10. All hard disk partition information including logical partition table and boot records of each partition can be backed up.
11. It provides the function of scanning the bad area of the hard disk and reporting the damaged cylinder.
12. It has the function of sector copy.
13. Partition data can be completely cleared.
II Disk genius running interface
If you just want to use disk genius to view and backup hard disk partition information, you can run this software directly under Windows 9x. However, if the disk writing operation involves changing partition parameters, it must be run in a pure DOS environment, and the "anti virus" option in "BIOS settings" should be set to "disable" before use.
After running "DiskGen. Exe" to start the software, it will automatically read the partition information of the hard disk and display the partition of the hard disk in the form of chart on the screen. Figure 1 is the partition information structure diagram obtained by disk genius from detecting the author's hard disk. The histogram on the left shows the location and size of each partition on the hard disk. The partition at the bottom is the first partition. The type of partition can be determined by the color of each part of the histogram and whether there is grid. The gray part is free space (not belonging to any partition), the partition without grid is the main partition, the partition with grid is the extended partition, and the extended partition is further divided into logical partitions (logical disks D, e, f...). The right side of the screen displays the type of each partition and its specific parameters in the form of a table, including the partition guide flag, system flag, partition start and end cylinder number, sector number and head number. If you don't understand the meaning of these parameters, you can refer to "about partition table" in the help file.
Between the histogram and the parameter table, there is a dynamic line indicating the corresponding relationship between them. You can select a partition by clicking in the histogram or table with the mouse, or you can select the current partition by moving the cursor key on the keyboard. Use "tab" or "shift-tab" key to select between histogram and table. When you select a fat or FAT32 partition, some information about the partition will be displayed in the window at the bottom of the table: the total number of sectors, total number of clusters and cluster size of the partition, two copies of fat tables, root directory, starting cylinder number, head number and sector number of the data area.
Special note: items 0 ~ 3 of the partition parameter table correspond to the four items of the main partition table of the hard disk, while items 4, 5, 6... Correspond to logical disks D, e, f... Respectively. When the hard disk has only one DOS primary partition and extended partition (this is generally the case for hard disks partitioned with fdisk), "item 0" indicates the partition information of the primary partition (Logical Disk C), "item 1" indicates the information of the extended partition, and "items 2 and 3" are all zero, which does not correspond to any partition, so it cannot be selected. The author once found a question post about diskman on a website forum and asked whether there was a way to delete "item 2 and item 3" with all zeros in the partition parameter table. Of course, it was impossible. The sender obviously lacked knowledge of hard disk partition. If you want to really understand the meaning of each item in the partition parameter table, you must understand the hard disk partition chain structure. It is suggested that interested friends find more relevant information.
III instructions
1. Backup and recovery partition table
After starting the software, press F9, or select "backup partition table" under the "tools" menu, and enter the file name in the pop-up dialog box (saved on disk a by default) to back up the current partition table. Press F10, or select "restore partition table" under the "tools" menu, and then enter the file name (read from disk a by default). The software will read the specified partition table backup file and update the screen display. After you confirm that there is no error, you can restore the backup partition table to the hard disk.
2. Establish zoning
The hard disk space without partition (i.e. free space) is gray in the partition structure diagram. A partition can be created only in the free space of the hard disk.
To create a primary partition, first select the gray area in the partition structure diagram and press enter; Then press the prompt to enter the partition size and select the partition type (to create a non DOS partition, you must also set the system flag according to the prompt. For example, if you create a Linux partition, the system flag is "83"). Using this software, you can create up to four DOS master partitions. If the user does not set the startup partition before saving, the first main partition will be activated automatically.
To create an extended partition, first select the gray area in the partition structure diagram, press F5, enter the partition size in the pop-up prompt box, and then confirm. After the expansion partition is established, it can only be used after it is further divided into multiple logical partitions (logical disks). The method is: select the newly established expansion partition (green area) and press enter. The subsequent operations are the same as when the main partition is established.
Tip: when there is an extended partition on the hard disk, you can't create an extended partition. If you want to divide a free space adjacent to the extended partition into an extended partition (that is, expand the scope of the "extended partition"), you can only delete the existing extended partition first and then rebuild it.
3. Activate partition, delete partition and hide partition
Press F7 to set the active partition as the name of the active partition to be activated.
Select a partition, press F4 to hide the partition, and press F4 again to restore; Press Delete or F6 to delete the selected partition.
Tip: if the main zone is deleted, its space will be transformed into free space (gray area); For example, after deleting a logical partition (such as D, e... Disks), its space will not become a free space, but will be transformed into an unused extended partition (into a green area).
4. Resize partition
This software can directly adjust the size of FAT16 or FAT32 partition without damaging any data. The method is as follows: select the partition to be adjusted, select the "resize partition" command under the "partition" menu, and then follow the prompts. It is recommended to run the "disk scanner" of windows system to check and correct the hard disk errors before adjustment, and make a backup of important files. Do not forcibly interrupt or shut down (restart) during adjustment. Otherwise, all data on the adjusted partition will be lost.
However, the author found that the partition adjustment operation of disk genius actually only adjusts the number of end cylinders, heads and sectors of the partition within the possible range (i.e. areas without data), and cannot really move the starting position of the partition. So this function seems to be of little use.
5. Modify partition parameters
Select the partition to be modified, press F11 to enter the modification state (as shown in Figure 2), move the cursor to the parameter to be modified, and type the value you want to set. Select "OK" to exit after modification.
Tip: use this method to adjust the start and end cylinder number, head number and sector number of the partition, so as to adjust the partition size, but it may cause the loss of logical disk (data). Users who are not familiar with the meaning of partition parameters should use this function with caution.
6. Rebuild partition table
When the hard disk partition table is damaged by virus or other reasons, disk genius rebuilds the partition table through the undamaged partition boot record information (mainly the search partition table end flag 55AA). The search process can be carried out automatically or interactively. The automatic method keeps every partition found, which is suitable for most cases. The interactive mode gives a prompt to each partition found, and the user can choose whether to keep it or not. When the partition table reconstructed automatically is incorrect, you can search again interactively. During the reconstruction process, the searched partitions will be displayed on the screen in time. But do not save immediately, so you can search repeatedly until the partition table is correctly established before saving. The operation of this function is very simple. Just select and execute the "rebuild partition" command under the "tools" menu.
This function is the easiest way to repair the lost fault of logic disk, especially the "special medicine" to "treat" various hard disk faults caused by improper use of pqmagic.
7. Rewrite master boot record (MBR)
This function can be used to rewrite the master boot record when the master boot record of the hard disk (located in the 0 cylinder 0 head 1 sector of the hard disk) is damaged and the system cannot be booted. Disk genius will automatically check and overwrite the damaged master boot record. For new hard disks without master boot record (MBR), disk genius will automatically establish MBR. This function is located under the "tools" menu.
8. Parameter inspection
After reading the partition table and before updating the hard disk partition table, the software will automatically check the partition parameters, and give prompts one by one when unreasonable parameters are found. You can also press F12 at any time to check.
9. Update the hard disk partition table
After you complete the partition establishment or partition parameter modification, to make the new setting take effect, press F8. The software will first check the partition parameters and write them to the hard disk, so as to update the hard disk partition table.
10. View any sector
Press Ctrl_ R key, in the pop-up view window (as shown in Figure 3), specify the sector to view (you can use tab key to select cylinder, head and sector parameters), and "pageup" and "pagedown" keys can turn pages back and forth. Click the "save as" button at the top right of the window to save several sectors starting with the current sector to the disk file.
11. Select hard disk
If your computer is equipped with a second hard disk, the "second hard disk" option will appear under the "hard disk" menu. Select it to switch to the second hard disk. It can also be converted to the first hard disk or other hard disks with the same operation.
12. Backtracking function
In order to prevent errors, disk genius does not save the partition table immediately for simple operations (including creating, deleting, hiding, activating, modifying parameters, etc.), but only makes modifications in memory. After you complete all modifications, confirm that there is no error and issue the save order, it will write your modifications to the hard disk at one time. However, if you fail to achieve your goal or even make an error after performing the disk writing operation, is it irreparable? In fact, don't worry. Disk genius has prepared a "regret medicine" for you. For each disk write operation, disk genius will automatically create a backtracking file lookback in its installation directory before executing the disk write command DAT, which saves the original contents of all updated sectors in this run. Click "backtrack" under the "hard disk" menu to restore the changed sector content in the hard disk to the state before writing. With the backtracking function, it undoubtedly provides another insurance for dangerous partition operation.
13. Quick format partition
After creating the primary and logical partitions, you need to format them before you can use them. Now disk genius also has the function of formatting FAT16 or FAT32 partitions. This function is located under the "zone" menu. Before formatting, you can set the cluster size, but generally you don't need to set it. Just use the default value. During the formatting process, you will be asked whether to scan the surface of your hard disk. According to the condition of your hard disk, if you are sure there are no bad sectors, you don't have to scan.
14. Clear sector data
This function fills the hard disk sectors with empty bytes, which can make the files in these sectors disappear completely. But I want to remind you that before doing so, you must think carefully!
To use this function, please first select the partition to clear the sector (do not choose wrong!), Then select "clear sector data" under the "tools" menu.
15. Surface inspection of hard disk
Select "hard disk surface detection" under the "tools" menu to detect the hard disk surface of a partition. This function is not tested by "cluster" and does not identify bad sectors. Therefore, any type of partition can be tested. You can choose to detect by "cylinder", "track" or "sector". If you press "cylinder" to detect, when a bad cylinder is found, you will skip this bad cylinder and continue to detect the next cylinder, so the speed is faster. If you press "track" detection, the bad track found will be skipped, so the speed is slightly slower. If you press "sector" detection, when a bad track is found, each sector in the bad track will be detected, so the speed is the slowest. After detection, a list of bad sectors will be generated and saved in "badselect. TXT".
16. Copy sector
This function is used to copy sectors and copy sector data from one location to another. For example, use the boot record backup of FAT32 partition to restore the damaged boot record. This function is located under the "tools" menu. When running, press the prompt to enter the starting position of the source sector, the destination sector and the number of sectors to be copied.
Experience: disk genius is indeed a very easy-to-use hard disk partition tool tailored for Chinese people. After creating, deleting, hiding, activating and modifying parameters of the partition table, the effect can be seen from the interface diagram immediately, but it does not really take effect at this time. It will write your modification to the hard disk at one time only after you confirm it and issue the Save command. Even when the modification has been saved and takes effect, you can still use its backtracking function to "go back". When there is a problem with your hard disk partition, you might as well use disk genius for "physical examination". Even if you are a rookie, you can "operate" on the partition table without fear. It is highly recommended that you go to Tianji download channel to try. The author suggests that you install disk genius on the system emergency boot disk, and use it to back up your hard disk partition table information to the boot disk for emergency use. If you want to modify the partition information, start disk genius from the floppy disk to trace the file lookback Dat will also be saved to a floppy disk to keep a "regret medicine" for you.
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Diskgenius is a hard disk partition and data recovery software. It is developed on the basis of the original DOS version. The Windows version of diskgenius software not only inherits and enhances most of the functions of DOS version (a few functions that are not implemented will be added one after another), but also adds many new functions. Such as: deleted file recovery, partition copy, partition backup, hard disk copy and other functions. In addition, support for VMware, Virtual PC and VirtualBox virtual hard disk is added. More functions are being made and constantly improved.
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1. Support the traditional MBR partition table format and the mainstream GUID partition table format.
2. Support basic partition establishment, deletion, hiding and other operations. Detailed partition parameters can be specified;
3. Support IDE, SCSI, SATA, nvme and other types of hard disks. Support u disk, USB hard disk (mobile hard disk), memory card (flash memory card);
4. Support FAT12, FAT16, FAT32 and NTFS file systems;
5. Support the file reading operation of ext2 / ext3 / ext4 file system. Support Linux lvm2 disk management mode;
6. You can quickly format FAT12, FAT16, FAT32, NTFS and other partitions. When formatting, you can set the cluster size and support the compression attribute of NTFS file system;
7. You can browse any files in any partition, including hidden partitions, including files that cannot be accessed through normal methods. You can read and write files and forcibly delete files by directly reading and writing disk sectors;
8. Support the allocation and deletion of drive letter;
9. It supports the recovery of deleted files in FAT12, FAT16, FAT32, NTFS and other partitions and the recovery of files after partition misformatting. High success rate;
10. Enhanced lost partition recovery (rebuild partition table) function. During the recovery process, the searched partition parameters and files in the partition can be displayed immediately. After the search, the files in the partition can be restored without saving the partition table;
11. Provide backup and recovery function of partition table;
12. The entire partition can be backed up to a mirror file and can be recovered if necessary (such as partition damage). Support the backup of system disk under the running state of windows;
13. Partition replication is supported. And provide "copy all", "copy by structure" and "copy by file" to meet different needs;
14. Support hard disk copy function. It also provides the same three replication methods as partition replication;
15. Support virtual hard disk files of VMware, VirtualBox and Virtual PC (". Vmdk. VDI. VHD" file). After opening the virtual hard disk file, you can operate the virtual hard disk like an ordinary hard disk;
16. You can copy files from the virtual hard disk, recover deleted files in the virtual hard disk (including formatted file recovery), copy files to the virtual hard disk without starting VMware, VirtualBox and Virtual PC virtual machine;
17. Support the creation, reading and writing of ". Img". Ima "disk and partition image files;
18. Support the creation of usb-fdd and usb-zip mode startup disks and their file operation functions;
19. Support disk bad track detection and repair function to minimize data damage in the process of repairing bad tracks;
20. You can open the PMF image file established by diskgenius;
21. Support sector editing function;
22. Support the mutual conversion function of virtual disk file format;
23. Support the function of lossless partition resizing.
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