Description of the File System Troubleshooting Options

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247485 Description of Troubleshooting Settings for File System Properties
The System tool in Control Panel contains a set of options for changing file system performance settings. You can use these options when you experience hardware or software compatibility problems.

NOTE: Enabling any of the file system troubleshooting options may seriously degrade system performance.
More information
To display the file system troubleshooting options, follow these steps:
  1. In Control Panel, double-click System.
  2. Click the Performance tab.
  3. Click File System.
  4. Click the Troubleshooting tab.
The following table describes the settings on the Troubleshooting tab:
   File system option    Description   -----------------------------------------------------------------------   Disable New File      This option alters the internal rules for file   Sharing And           sharing and locking on hard disks, governing   Locking Semantics     whether certain processes can have access to                         open files in certain share modes that guarantee                         a file will not be modified. This option should                         be checked only in the rare case that an                         MS-DOS-based application has problems sharing                         under Windows 95. This sets SoftCompatMode=0 in                         the registry.   Disable Long Name     This option turns off the tunneling feature,   Preservation For      which preserves long filenames when files are   Old Programs          opened and saved by applications that do not                         recognize long filenames. This option should be                         checked in the rare case that an important legacy                         application is not compatible with long                         filenames. This sets PreserveLongNames=0 in the                         registry.   Disable Protected-    This option prevents Windows 95 from terminating   Mode Hard Disk        interrupts from the hard disk controller and   Interrupt Handling    bypassing the ROM routine that handles these                         interrupts. Some hard disk drives might require                         this option to be checked in order for interrupts                         to be processed correctly. If this option is                         checked, the ROM routine handles the interrupts,                         which slows system performance. This sets                         VirtualHDIRQ=0 in the registry. (This setting is                         off by default for all computers in Windows 95,                         which is the reverse of Windows 3.x.)   Disable All 32-Bit,   This option ensures that no 32-bit disk drivers   Protected-Mode        are loaded in the system, except the floppy   Disk Drivers          driver. Typically, you would check this option                         if the computer does not start due to disk                         peripheral I/O problems. If this option is                         enabled, all I/O will go through real-mode                         drivers or the BIOS. Notice that in this case,                         all disk drives that are visible only in                         protected mode will no longer be visible. This                         sets ForceRMIO=1 in the registry.   Disable Write-        This option ensures that all data is flushed   Behind Caching        continually to the hard disk, removing any   For All Drives        performance benefits gained from disk caching.                         This option should be checked only in the rare                         cases where you are performing risky operations                         and must ensure prevention of data loss. For                         example, a software developer who is debugging                         data at Ring 0 while creating a virtual device                         driver would check this option. This sets                         DriveWriteBehind=0 in the registry.				
Each option sets a value in the following registry key:

Article ID: 165503 - Last Review: 10/26/2013 15:28:00 - Revision: 3.0

Microsoft Windows 95

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