Although Windows 7 is more reliable and improved than its earlier counterparts, but instances that can cause its data to get lost are still noticeable. Windows 7 partitions are generally formatted to NTFS, which can get corrupt for several reasons. NTFS corruption reasons include unexpected power outage, partition table corruption, and more. Thankfully, there are several Windows Partition Recovery utilities available that can help you extract lost data in such cases, when data backup is not available. Further, we'll discuss one such realistic scenarios that has rendered Windows 7 partition data inaccessible.

Consider, a Windows XP computer with two partitions: partition A - the primary partition to store Windows and partition B - the data partition to store user data. You decide to upgrade Windows and opt for clean installation of Windows 7 on partition A, anticipating that the data on partition B will remain intact.

After Windows 7 installation is successfully done, you start the computer and try to access partition B. But contrary to your expectations, partition B remains no longer accessible. You can see this partition listed in 'My Computer', but when you click to access it, you get below error message:

“Access Denied - Drive Not Accessible”

The error suggests that you do not have sufficient permissions to open the drive, you are trying to access. If this is the sole reason, you, as an administrator, can try executing the below command from the elevated command prompt:

takeown /f drive_name:\ /R /D Y

Where, drive_name should be replaced with the letter of affected drive. This solution generally works, if you are running a dual-boot computer and do not have required permissions to access the files and folders of drive.

Drive inaccessibility can also root from partition corruption due to partition table concerns. Thus, you need to delete the corrupted partition and apply your last backup to restore its files and folders. However, if no good backup is available, you need a Partition Recovery Software to recover everything. Windows Partition Recovery software are exclusive tools designed for recovering lost data in instances like above.

Stellar Phoenix Windows Data Recovery is one of the best products that can recover your lost data in a few clicks. This Partition Recovery Software enables a deep scanning that proves helpful in retrieving inaccessible data safely. The tool supports recovery from Windows 7, Vista, XP, 2003, and 2000 operating systems.

Daisy a student of Mass Communication doing research on Partition recovery software. He is also a freelancer for http://www.partitionrecovery-software.com/window-ntfs-fat-recovery.php