The reason of hard disk space loss and its solution

A good hard drive, after the installation of a software, the loss of several G space, this is why? At ordinary times we will also encounter some disk space loss of the problem, usually have no own observation of their own hard disk? In fact, our hard disk has the phenomenon of space loss, we can pay attention to observe, the following are some of the main reasons for the loss.　　　　
1. The software causes the space "false" to lose
many times, oneself obviously deleted a large number of files, the result hard disk free space not only not to increase, but also is smaller, why? Now a lot of software has to remove data protection features, such as Norton's Recycle Bin protection, finaldata, such as data recovery software. If you have Norton System works installed on your systems, when you empty the Recycle Bin, you will back up the files in the bin to your hard drive, and even if you can recover the emptied data after emptying the Recycle Bin, we can view the files in the Norton Removal Wizard (UnErase Wizard).　　To be protected by Norton, "lost" hard disk space, just right-click the desktop "Norton Protected recycle Bin" icon, select "Empty Norton Protected Files", in Norton empty these files can be. Www.3lian.com
In addition, some data recovery software also has data protection capabilities. FinalData will automatically copy your deleted files to a single directory, resulting in the removal of the file free space will not increase the phenomenon.　　　Just find and clear these backup files in these software.
  2. Loss of hard disk space after virus attacks
virus attacks the computer caused by a variety of computer failures, can cause hard disk space loss is also a regular thing. If the CIH virus attack, generally will appear the hard disk space loss phenomenon.　　Against the virus, or the old saying: Install a good reputation of the firewall and anti-virus software, regularly upgrade the virus library files, do not easily open some unknown executable file, regular upgrade system, the dozen patches do not fall.
3. File allocation table corruption causes space loss
file allocation table (FAT) is an implied table on a floppy disk or hard disk. Fat records How to store a file on a specific (not necessarily contiguous) cluster. file allocation tables use an easy way to keep track of data. In fat, the first cluster's entry is the address of the second cluster that is used to store the file. At the entrance of the second cluster is the address of the third cluster ... Until the final cluster entry that contains the file end code. If the FAT table data is damaged for some reason, the logical continuity of the hard disk data will be disturbed, which can result in the loss of hard disk space. Because of a defect in the traditional fat format, if a cluster is not in any file allocation chainOccurs, and the cluster is marked as not zero in the corresponding file allocation table, when the cluster is not used by any file and can no longer be used by other files, a "cluster loss" phenomenon occurs. The loss of the cluster will inevitably result in the loss of hard disk space. This "lost" space is usually due to the program in the operation of normal termination, the system is not normal shutdown caused.　This space-lost failure can be solved with a common disk repair tool, but the data is often not repaired.