Windows Vista supports atomic transactions to NTFS file system using a component called Transactional NTFS (also called TxF). Using Transactional NTFS makes it easier for application developers and administrators writing file output routines, which are assured either to completely fail or completely succeed. Thus, this group of users can efficiently preserve data integrity and handle errors. The log file thus generated while using TxF is called $TxfLog file. If $TxfLog file suffers inconsistencies, it is supposed to be fixed by Clfs.sys driver (Common Log File System driver). However, if it fails to correct, your system becomes unbootable displaying some errors on blue screen. Such situations might force you to reformat the hard disk and restore lost data from the previous backup. In case of any backup concerns, you can use Data Recovery Softwareas the sure solutions to recover lost data.

While trying to boot your Windows Vista-based computer system, you might encounter the below error message displaying on a blue screen:

“0x0000C1F5”

Cause

The above error occurs if both of the following conditions are true:

• $TxfLog file is corrupted
• Clfs.sys driver (Common Log File System driver) fails to fix $TxfLog file corruption

Ø Common Log File System or CLFS is the logging system used by Windows for creating high-performance transaction logs. It is accessed by both user-mode and kernel-mode applications. Its driver file is termed as Clfs.sys.

Solution

You need to use listed methods to solve this problem:

• If you have installed more than one hard disk into the system, you should simply remove the disk on which the $TxfLog file is damaged and doesn’t contain Windows Vista.
• In case you are using only one disk in your system, you can restart the system using an earlier operating system (like Windows XP or Windows 2000) installation disc and use it reformat the hard disk to reinstall Windows Vista. You should restore your lost data from your previous backup.

Sometimes, backup fails to give required results because of reasons like interruption while taking backup, not regularly updating it and more. In such cases, Data Recovery applications come as rescue. These Data Recovery Software use powerful scanning algorithms to analyze the media for lost data and restore it at a safe location.