Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium


Force Compatibility Mode Disk Access

Posted on 2003-03-21
Medium Priority
Last Modified: 2013-12-28
I am troubleshooting a friend's Win98 computer.  An attempt was made in install an M-Systems Disk on Key [www.diskonkey.com] device without the Win98 driver installed first.  Now the system gives the message: "Windows Protection Error.  You need to restart your computer" upon bootup.

I have narrowed it down to this:

When I run msconfig, and select "Force Compatibility Mode Disk Access" under the advanced tab, the computer will start.

From Microsoft's website:
Force Compatibility Mode Disk Access
As you know, Windows 98 uses 32-bit drivers for all of the disks in the system. If, when you check the Performance tab in the System Properties dialog box, you discover that one or more of the hard disks in your system is using MS-DOS Compatibility mode due to disk peripheral input/output (I/O) problems, you can use the Force Compatibility Mode Disk Access setting to troubleshoot the problem. When you enable this setting, it prevents Windows 98 from using 32-bit disk drivers, except for the floppy driver, and forces it to use 16-bit, or real-mode, drivers or the BIOS to manage the drives. Keep in mind that any disk that only works in protected mode will no longer function. Using this setting is also equivalent to starting Windows 98 with the /d:f command-line switch.

My question is HOW do I troubleshoot it?  What do I check, and what can I change to resolve the problem?
Question by:sssobel
  • 2

Expert Comment

ID: 8181778
has the driver been installed since then?

Author Comment

ID: 8181824
Yes it has.

Accepted Solution

stretchsp earned 300 total points
ID: 8182498
roll back the registry to date before M-Systems Disk  was installed.
boot to dos  and type:  scanreg/ restore
pick a date before the install process and reboot the machine.
Now load the win 98 driver then the M-Systems Disk

Author Comment

ID: 8185485
That solved the problem!  Perfect, thanks!

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Most folks would know the basics of how Dropbox works, so that’s not the purpose of this article. Security is what it’s all about, so here I’ll share how I choose to secure my Dropbox Account and the Data it contains.
This is an update to some code that someone else posted on Experts Exchange. It is an alternate approach, I think a little easier to use, & makes sure that things like the Task Bar will update.
This Micro Tutorial will give you a basic overview of Windows DVD Burner through its features and interface. This will be demonstrated using Windows 7 operating system.
This is used to tweak the memory usage for your computer, it is used for servers more so than workstations but just be careful editing registry settings as it may cause irreversible results. I hold no responsibility for anything you do to the regist…
Suggested Courses

581 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question