This article was previously published under Q216250
This article has been archived. It is offered "as is" and will no longer be updated.
When you try to start Windows 95 Setup from floppy disk 1, you may receive the following error message:
This program cannot be run in DOS mode.
This issue can occur if you try to run Windows 95 Setup but you have inadvertently inserted Microsoft Internet Explorer floppy disk 1.
To resolve this issue, run Setup from the Windows 95 floppy disk 1.
There are two different sets of installation disks included in the Windows 95 retail release (Upgrade or Full version). One set of disks is for installing Windows 95, which can be installed from a command prompt or from within Windows. The other set of disks are for installing Internet Explorer, which must be installed from within Windows. Both sets of disks have a disk labeled "Disk 1 - Setup", so it is important to note the actual product name printed on the left side of the disk label.