EISA or Extended Industry Standard Architecture is a bus standard typically used for IBM compatible computers. It extends the AT bus architecture to 32 bits and thus allows more than CPUs to share the same bus. In Windows, sometimes when you convert a basic disk that contains an EISA partition to dynamic disk, you might experience some typical type of problems. To solve these issues, you might need to delete all the partitions of your physical disk and restore data thus lost from backup. Sometimes, backup fails to give required results or is found to be absent. To recover data in such situations, you need to use data recovery software that analyze the media and perform safe retrieval of lost data.

Consider that you use a basic disk that contains an EISA partition in Windows 2000. You upgrade the disk to dynamic disk. After this, you observe the following symptoms with the EISA partition:

• The EISA partition is displayed at an incorrect location

• You cannot manage the partition in LDM (Disk Management snap-in) in MMC (Microsoft Management Console)

• EISA partition usually resides as the first partition. But on dynamic disk, it is shifted to partition two with no drive letter associated.

• When you right-click the partition, you don't see Reformat, Delete or Explore command. You only see the Help command. Thus, you cannot delete or reformat the partition.

Cause
The EISA partition is not placed at correct location because of the way that LDM uses to handle it. Unlike basic disk, the LDM protects EISA partition from being damaged on dynamic disk. It doesn't the allow use of Windows 2000 Disk Management to delete the partition. Instead, you can use any OEM system EISA utility to recreate it.

Solution

To delete the EISA partition, you should use any of the following tools:

• diskpart command of Windows Recovery Console

• Windows 2000 Setup

• Third-party disk partitioning utility

To use Windows 2000 disk Management to delete it, you will need to remove all the existing partitions of the disk.

After using any of the tools mentioned above to remove the partition(s), if you find difficulties restoring from backup, you should use data recovery applications. Designed with powerful recovery technology, these tools are suitable partition recovery applications embedded with advanced scanning algorithms. Data Recovery Software provide graphically rich user interface.

Stellar Phoenix Windows Data Recovery is a fully-featured and advanced recovery utility for recovering lost and deleted data from Windows 7 RC1, Vista, XP, 2003 and 2000 systems. It is a comprehensive data recovery tool that provides you advanced features including Drive Status, Disk Imaging, Drive Cloning and more. The software is compatible with FAT32, VFAT, NTFS and NTFS based drives.