I went to bios, and accidentally changed the auto detect ide to "lba" instead of normal. then when I started up the computer, "ATX cdrom detected". then after a while, it said: invalid I/O system disky (something like that). and can't open windows. I went back to bios, and tried to go to the autodetect ide thing to change the primary master back to the "normal" one, but then, when I saved it, it turned back to the ide one. I tried several times, but I still can't save it to make the primary master the "normal" one. now I have to use a floppy with windows startup files to boot up windows. what should I do? When I tried to turn it back to normal, the disk won't boot into windows even if I got a startup disk. it'll go to the menu (with all those options saying safemode, command prompt..etc) but no matter what choice I choose, it results with the same message: system files missing/corrupted, and can't enter windows..etc etc. I then go back to bios, change the settings back to lba, and then windows would startup with the help of a startup floppy. how can I fix this problem? I had edited the bios because there is a problem with my cdrom thing. now, I haven't fixed that proble but arised another also. When I open the "my computer" file, I cannot see the icon "d" (the drive for the cd-rom). then when I insert a cd for a software, (eg. corel draw, microsoft office..etc. I tried a lot of them) they don't autorun. I just think that "D:" doesn't exist in my computer at all. that drive was there a few days ago, and I just found out that it's gone when I wanted to install a software today. there was no way I could install/access the materials in the cd. I can't even play and audio cd! what's the problem? I tried going into the bios autodetect thing, but besides the primary master, all the others (primary slave, secondary slave..etc. are blank, and doesn't have any options for me to choose.) I have another computer in my house. I checked it, and in the secondary slave section. (in the other computer) there are items for me to choose from. is that the problem? please answer my 2 questions. or 1 if you can only answer 1

Hi Rois In the BIOS, can you just run Autodetect and let the computer decide - without you choosing anything. Your CDROM problem may be a NOIDE entry in the registry. Get into Windows whichever way you can and run REGEDIT and search for NOIDE Entry will be here ( if you have it ) HKEY_LOCAL_MACHINE\SYSTEM\CURRENTCONTROLSET\SERVICES\VXD\IOS Delete the NOIDE entry if it exists. This may OR may not fix everything ! Good luck...Krystyna

how do I run auto detect?

Make a note of all your other current settings in your BIOS and then reset the bios or clear it to default values. Then from your notes you made, enter your original settings from when your machine worked properly and run your autodetect again if need be. Then try it, making sure your cdrom is in place and set correctly etc... If you have missing or corrupted system files in windows run the SFC facility:- start , run , and then type sfc then click ok. This will check the integrity of your system files.If any are corrupt or missing it will ask if you want them replaced so have your windows installation disc ready and make sure you ''point'' to that disc in your cdrom drive ( if you get it going that is ). Good Luck!

Rois Click on the IDE HDD AutoDetection ( or similar ) scetion and when it comes up - the first choice should be for Primary Master IDE. Do NOT enter any number choices - just hit enter and then it will go to the next thing Primary Slave - just hit enter again until it is finished looking at all IDEs. Leave that section and go to Standard CMOS setup page and check what autodetect has put in for the hard drive- what does the mode say here ? If it is all correct, exit and save ( make sure you press the right letter to save ) If you are still getting the error message about the system files being missing or corrupted- then boot up with your floppy and at the A:\ prompt type SYS a: c: This will copy the system files back onto your hard drive, and should allow you to boot normally into the hard drive. Krystyna