I removed a harddrive from a machine and used it somewhere. When i remounted it, i got the following problems: During booting up it did not detect the harddrive, but through up the following message conflict I/O Ports : 378 I then pressed F1 to continue but the following message poped up VMM32.VXD is required to run Windows If this file is not in the path you may need to reinstall windows Also went into setup and auto detected the HDD but the same error came up again

Hi fmatsika, hi everyone, Take care because this VMM2.VxD problem is rather tricky and can lead to reinstall Windows if you're not aware! First of all, know that VMM32.VxD can't be copied from another computer as it is created at installation of YOUR system! Have a look at this very good site: http://www.infinisource.com/techfiles/vmm32.html Now, -----Microsoft Knowledge Base Articles Here are some Microsoft Knowledge Base Articles dealing with VMM32 errors: - Windows 95/98 Boots Directly to "Shut Down" Screen - 141898 http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;141898 - Missing or Damaged Vmm32.vxd File in OSR2.1 Setup - 167889 http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;167889 - ErrMsg: VMM32.VXD: Missing/Unable to Load - 191874 http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;191874 - Error Message: VMM32.VXD Is Required to Run Windows... - 194679 http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;194679 - Err Msg: Invalid VxD Dynamic Link Call from VPOWERD(06)... - 194999 http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;194999 - Computer Stops Responding After You Press CTRL+ALT+DELETE - 195164 http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;195164 - Digital Sound System: Windows Is Unable to Detect DSS80 Speakers - 220821 http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;220821 - Err Msg: Unpacking Vmm32.vxd, Library Invalid or Wrong Version - 296579 http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;296579 ----- Please, keep us informed! Have a good day, Gérard from Paris, France

Be sure to check your cmos settings. The: conflict I/O Ports : 378 is coming from the bios. 378 is usually an option for a parallel port address. You may have an add-on card at that address that's causing a conflict with an on-board port. I know you've used 'auto detect HD', but you may want to just set the HD at AUTO if you have that option.