You can install Windows 95 on a computer running any version of OS/2 as long as a FAT partition is available. If the computer has any HPFS partitions, these partitions are not available from within Windows 95. Setup reminds you of this when it detects an HPFS partition.
The following notes apply to installing Windows 95 on a computer running OS/2:
Windows 95 Setup cannot run from within either OS/2 or OS/2 for Windows. You must start the computer by using MS-DOS and then run Windows 95 Setup from an MS-DOS command prompt. If your OS/2 system is not configured to dual boot with MS-DOS, install MS-DOS first, and then start Windows 95 Setup from MS-DOS.
If your computer has OS/2 Boot Manager, a message warns you that continuing with Windows 95 Setup will disable Boot Manager. If you choose to continue, Windows 95 Setup removes the OS/2 Boot Manager partition information because Windows 95 Setup cannot determine which operating system or configuration Boot Manager will use to restart the computer. This ensures that Windows 95 starts during the installation process.
Windows 95 Setup leaves all other OS/2 files intact and does not remove any files from the OS/2 directory.
Windows 95 runs normally with Boot Manager after installation is complete. After Windows 95 is installed, you can make Boot Manager active again by using the OS/2 boot disk to run the OS/2 Fdisk utility.