You may come across file system corruption and file loss situations if you are using NT based version of Microsoft Windows operating system on a FAT (File Allocation Table) partition/volume or CDFS (Compact Disk File System) volume that has a file system filter driver running. In this case, you may lose your critical data, application or multimedia files and face serious data loss situations. In order to resolve such issues, you need to opt for powerful and advanced File Recovery software.
You might encounter this problem due to MDL (Memory Descriptor List) interactions between the system filter drivers, the SMB (Server Message Block) server, the Cache Manager and FAT. There is an error in Cache Manager of NT based versions of Microsoft Windows that might result into system corruption and file loss in case the below mentioned conditions are true:
Windows NT based operating system or file server (Srv.sys) is running and sharing data on local FAT system (Fastfat.sys).
Note: This issue doesn't occur if the file server is sharing data on the NTFS file system based computer. However, the issue might exist with other file systems or codes that exercise MDL (Memory Descriptor List) I/O (Input Output) in the ways similar to Srv.sys.
The Windows operating system is using the system filter drivers. The file system filter driver must be aware of Fast MDL routines and this must filter the I/O on FAT file system.
For instance, when the filter drives filters Input/Output on the SMB server that is shared on FAT system. The I/O requests, which flow from network system through server to the filter drive and into FAT partition, might result into file corruption.
Resolution
You can sort out this behavior of Microsoft Windows operating system by installing the latest version of Windows NT kernel (that includes Cache Manager). It no longer ignores the returns from filter drive, which indicates the filter didn't write data or free the MDL.
You can prevent this problem from occurring in future, but it won't solve the current issue of corruption and file loss. To fix this issue, you need to use File Recovery Software.
File Recovery Software are powerful and advanced third party tools, which thoroughly scan the whole hard drive and extract all data from it. These software come equipped with interactive and simple graphical user interface and enable you to achieve quick and safe 'Do It Yourself' File Recovery.
Stellar Phoenix Windows Data Recovery is a comprehensive File Recovery tool. The software natively supports 185 file types that can be further extended. It also performs Deleted File Recovery for Outlook PST and Outlook Express DBX e-mails. It supports FAT16, FAT32, VFAT, NTFS and NTFS5 systems based partitions and volumes. The software is compatible with Windows 7 (Currently in RC1), Vista, XP, 2003 and 2000.
Robin Watson a student of Mass Communication doing research on file recovery software. He is also a freelancer for partition recovery.
Article Source: http://EzineArticles.com/?expert=Robin_Watson
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