Windows 3.0 build 55

1.55
	Build of Windows 3.0
OS family	16-bit Windows
Version number	3.0
Build number	55
Architecture	x86 16-bit
Compiled on	1990-01-02
About dialog

Windows 3.0 build 55 is a pre-release build of Windows 3.0. It was leaked in 1990 as a preinstalled folder and was later found and shared by BetaArchive member The Distractor on 3 March 2014.^[1] The original installation media for this build remains to be found. A rebuilt disk set has been made by member WinPC, but it uses some files from the RTM build.

Bugs and quirks[edit | edit source]

Installation[edit | edit source]

It is required to click Cancel when setup asks for Disk 3 for the second time, then click Ignore when it asks for HIMEM.SYS. This build should be installed on top of MS-DOS/PC-DOS 4.0 for Real Mode, or Compaq's MS-DOS 3.31 for 386 Enhanced Mode.

Paintbrush warnings[edit | edit source]

Two warnings can occur if the Paintbrush program has been run for the first time. The first one informs that Paintbrush doesn't work well in low-memory situations, so the problem should be run under Standard or 386 Enhanced mode. The second warning talks about a bug where the contents of overlapping windows can end up in the drawing. It recommends the user to not display other windows on top of Paintbrush to avoid this bug.