If the problem persists, identify the problem from the preceding list and correct it. Setup fails with error B1. A B1 error message indicates that Setup has detected an older 80386 processor that is not supported and instructs you to upgrade your processor. Intel 80386 microprocessors dated before April 1987 are known as B1 stepping chips. These chips introduce random math errors when performing 32-bit operations, thus making them incompatible with Windows 95.
Problems occur during the file-copying phase of Setup.
If this occurs, exit Setup, restart your computer, and then rerun Setup. When prompted, select the Safe Recovery option and click Continue. The installation process should complete successfully. If your computer stalls after all files have been copied, or if you receive an error at this point, it might be due to virus-protection software. You should disable the virus protection software or run your computer's configuration program to disable virus checking and then restart Setup.