PROBLEM: Possible Data Loss with LBA and INT13 Extensions If the Windows95 versions of FDISK and FORMAT are run on a new hard disk you will experience problem with the partitions. The data on the disks may be incorrect or damaged when you perform one of the following actions: Choosing "Restart the computer in MS-DOS mode" from the Shut Down menu and using DIR D: to look at the data on the D: drive. Starting an MS-DOS-based program that is configured to run in MS-DOS mode. Specifically, if there are multiple partitions on a large EIDE hard disk, the extended partitions (usually drive letters D and higher) seem to contain the contents of the primary partition (usually drive C), or to be corrupted. WARNING: In this situation, attempts to use disk-repair utilities such as ScanDisk to repair the apparent corruption will cause data corruption on the primary partition of the affected drive. Any action that attempts to write data to the extended partitions when this symptom is observed may also result in data corruption. Running the CHKDSK command when this symptom is observed may result in a "Probable non-DOS disk" message. SOLUTION: 1. DO NOT use the Windows95 versions of FDISK and FORMAT, use the MS-DOS 6.22 versions. 2. If you must use the Windows95 versions of FDISK and FORMAT get the following MS Knowledge Base article. http://www.microsoft.com/kb/articles/q148/8/21.htm Possible Data Loss with LBA and INT13 Extensions Article ID: Q148821 Creation Date: 25-MAR-1996 Revision Date: 12-SEP-1996 The information in this article applies to: Microsoft Windows 95