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CLFS.SYS File Corruption in Windows Vista

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CLFS.SYS file is one critical system file of Windows Vista operating system. The file is saved at %WinDir%\System32\clfs.sys folder and is required at the time of Windows Vista booting process. Corruption in this file can occur due to various reasons, like improper system shutdown, virus infection, file system corruption, and human mistakes.

In most cases of CLFS.SYS file damage, the computer system exhibits a boot error message that prevents the user from accessing the hard drive data. To surpass the hazards created post CLFS.SYS file damage, in case the user has not maintained any backup, the user needs to use an effective Windows data recovery software.

For deep depth explanation of the above problem, consider the below error message:

“A problem has been detected and Windows has been shut down to prevent damage to your computer.



If this is the first time you’ve seen this Stop error screen, restart your computer. If this screen appears again, follow these steps:

Check to make sure any new hardware or software is properly installed. If this is a new installation, ask your hardware or software manufacturer for any Windows updates you might need.

If problems continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing. If you need to use Safe Mode to remove or disable components, restart your computer, press F8 to select Advanced Startup options, and then select Safe Mode.

Technical information:

*** STOP: 0x00000050 (0x8AFBF028,0x00000000,0x84E2C363,0x00000000)

*** CLFS.SYS - Address 0x84E2C363 base at 82e1b000 Datestamp 4549acbc”

This error message appears when you try to boot your Windows Vista machine. After the error message flashes, the boot process stops, thus making the hard drive data inaccessible.


The above error message appears when CLFS.SYS file gets corrupted or damaged.


Follow the below guidelines to resolve the above error message:

Use 'Startup Repair' option to resolve the booting issues.

If the option fails then reinstall Windows Vista operating system and restore the data from an updated backup. However, in case no backup is available, use a commercial Windows Recovery Software. Such Windows Data Recovery tools use effective scanning techniques to recover lost, deleted, and formatted data from a Windows based hard drive.

Stellar Phoenix Windows Data Recovery software can recover all the lost data without modifying the original data. Supported by Windows 7, Vista, XP, 2003, and 2000 operating systems, the recovery utility is compatible with FAT12, FAT16, FAT32, VFAT, NTFS and NTFS5 file systems.

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