Out of the clear blue one morning I go to bootup and I get this error message (after the win95 logo and, it seems, after the config.sys and autoexec.bat):

While Initializing device IOS:
Windows Protection Error. You must restart your computer.

By going into the "Step by step..." mode I see that the problem seems to be comming from the io.sys file.

I can get into Win95 via Safe Mode but, of course, you can't really do anything in Safe Mode.

I found out by accident that if I bootup in "Command prompt only" mode and then from the C:> prompt enter "WIN", I can get into Win95 without problems and that all programs still seem to run fine.

My question is: Although this work around works, it makes me nervous to have such a dire sounding error message show up so:

What do you think is causing the problem and How can I fix it.

Any help would be much appreciated.

Oh yea, I also have Win NT 4.0 installed on another drive and it boots up fine.

Ed