Problem 1: My computer is equipped with dual hard disks, in which the main disk 80G is divided into four zones (NTFS), the secondary disk Seagate 40G is divided into one zone (NTFS), and the recent secondary disk format suddenly changes. It becomes RAW and cannot access the hard disk. Because the data inside is important, it is not intended to be formatted. Please master how to restore the hard disk format without damaging the data inside. Thank you! Question 2: WINXP HOME 1 reinstalled yesterday, I don't know why, the mobile hard disk is plugged in, the 60G mobile hard disk file system becomes RAW format! I clicked on it to prompt me to format, which has important data. Do you still have a master to save? Thank you very much! Question 3: My U disk has become RAW format, can not solve the XP display format is RAW, free space and used space are 0, the disk management display status is not available, I do not know how, I hope you boss help the younger brother One, the younger brother gave you the boss. The above problem is that the partition has changed the format to RAW for some reason. There may be many reasons for this. There are several ways to solve the problem below. I have summarized it. The friends who have encountered this problem will solve it according to the situation. ! Schemes 1 and 2 are only valid for the original system in the NTFS format. Win2K and WinXP users can try. Please note! Solution 1: System privilege problem 1 (the original system is a problem with the NTFS format) Right click on the RAW format drive letter, select "Attributes", then select "Security", delete the useless users, add yourself Username, then change the permissions. If there is no security option, you can remove the “Use Simple File Sharing” option in the folder option (Open “My Computer”—Select“Tools> Menu— Reselect “Folder”option) The front hook, you can right click on the NTFS format disk, and the security options are displayed in the property menu. Solution 2: System privilege problem 2 (the original system is a problem in the NTFS format) Go to “ Control Panel & rdquo; find & ldquo; management tools & rdquo; open it, will open the "local security policy", in the “Security Options”Open, find in the right window "Network Access: Local Account Sharing and Security Mode" "Only Guest”Change to "Classic", quit back to my computer, at Turn on the RAW disk and right click to find the "Security" label, delete it garbled, and then add the user of this computer. Solution 3: Modify the drive letter How to change the RAW drive letter, if it is C, D, E, F, F is the RAW drive letter, then change F to E, you can recover. Solution 4: Use EasyRecovery software Use EasyRecovery software, click the second button on the left side of the software “ Data Recovery” enter. Then click the first “Advanced Recovery” in the right border, and then you will see all the disks of your computer listed on the left side of the software, select the disk that cannot be used, and then click “NEXT”, the computer will analyze you. The data that exists in the disk 1. Right click on the RAW format drive letter, select the attribute, then select security, delete the useless user, add your own user name, and then change the permission. If there is no security option, you can remove the “Use simple file sharing” checkbox in the folder option (Open My Computer, select the Tools menu, and then select the folder option) to click on the NTFS format disk. Right click and the security options are displayed in the properties menu. Second, enter “ control panel & rdquo; find & ldquo; management tools & rdquo; open it, open the "local security policy", open the "security options", find in the right window "network access" : Local account sharing and security mode & rdquo; after the "only guest" changed to "classic", quit back to my computer, right click on the D drive to find the "security" tag, garbled it Delete and add the user of this computer. Third, use EasyRecovery Pro 6.06, select data recovery Advanced Recovery (select advanced option custom data recovery function); 2, select the drive letter that has become RAW format, click the advanced option in the lower corner; 3, in the file system scan , file system select "NTFS", point to advanced scanning, select the "lower option" in the lower right corner, set the cluster size and data start position to 0; 4, click on the partition settings, use the MFT method (this must Can't be wrong); then OK; 5, click Next, start scanning the file system, and then wait, it takes a long time, be patient. Upon completion, you will find an NTFS drive letter, click on the found drive letter and start scanning. 6. After the scan is complete, you will find all the files found, then click Restore and select an available disk to save. The file you restored will do; 7. Finally, format the problematic disk and copy the recovered file back to OK. Everything is intact. The first and second methods are recommended, and the third method is used when the first and second methods fail. Method 4: I accidentally found a tool PTEDIT32.EXE (partition table editor) attached to Norton PartitionMagic 8.0, just try it, open the information to find the corresponding partition, and compare with other partition information, found that there is a big Different, at this time, compared with the information of other partitions to modify the information of the partition that is in error (each hard disk partition is different, so there is no standard parameter), you can resume operation, so don't worry, it will not damage the data, save it after modification. After restarting, you're done! Method 5: First cp ~/.bash_history ~/cmd_history Back up the commands you have played, and then find out what commands you used in cmd_history. If you just changed the file system flag, use the fdisk -> t command to change back to the original file system flag.