[Offer] Windows 95 beta Build 90c
Windows 95 Beta Build 90C was release May 1994. Windows 95 Beta Build 90C it between Beta Builds 81 and 99. Found it by BetaArchive. It takes the same Beta Site ID and Password as 81. It has 16-bit MSPAINT (though so does 99), it's the first known build to have the log off ability, and it places the taskbar on the top of the screen by default. Also, COMMAND.COM identifies as 90b in VER. Enjoy 
Download Link
https://mega.nz/#!RfwAXALA!a3MYs9Yrxk0BaNI2bX70g2eDTuhaFAcY_XLOoH6S78I
Comments
I have the Beta, yesterday from Betaarchive. But i will warn you: it's very unstable.