Explanation: You suspect, for whatever reason, a virus infection on your hard disk and are not sure what to do about it.
MORE ...The hard disk's file structures have become corrupted or the data on it is unreadable (an existing disk volume is acting as if it is unformatted, or there are very serious disk errors)
MORE ...Explanation: One or more files or directories seem to have "disappeared" from a disk volume. You were using them or referenced them recently, but now they are nowhere to be found.
MORE ...I am experiencing file system corruption problems, such as lost clusters, cross-linked files or invalid files or directories
MORE ...This section deals with file system problems, which refer to issues with the logical file and directory structures on the hard disk.
MORE ...Many destructive viruses damage the Master Boot Record and make it impossible to start the computer from the hard disk. Because the code in the Master Boot Record executes before any operating system is started, no operating system can detect or recover from corruption of the Master Boot Record.
MORE ...For Operating System to boot properly, system files required to be safe.
In case of Windows 95 / 98 / ME, these files are msdos.sys, config.sys, autoexec.bat, system.ini, system.dat, user.dat, etc.
In case of Windows NT / 2000 / XP these files are: NTLDR, ntdetect.com, boot.ini, located at the root folder of the bootable volume, Registry files (i.e., SAM, SECURITY, SYSTEM and SOFTWARE), etc.
If these files have been deleted, corrupted, damaged by virus, Windows will be unable to boot. You'll see error message "NTLDR is missing".
MORE ...The Master Boot Record (MBR) will be created when you create the first partition on the hard disk. It is very important data structure on the disk. The Master Boot Record contains the Partition Table for the disk and a small amount of executable code for the boot start. The location is always the first sector on the disk.
MORE ...Reason: Virus, format, mis-partition, mis-clone, mis-operation, network deletion, power-cut during operation all may be the software reasons.
Symptom: The symptoms are usually mis-operation, read error, can not find or open file, report no pa MORE ...
Reason: Password loss.
Symptom: files, system password, database or account is lost.
Resolution: some special decryption tools that correspond to certain data form such as Word, Winzip can be used.
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