Thank you again...I just added the command on the config.sys the :<br><br>device=a:\himem.sys<br>device=a:\emm386.exe noems<br>dos=high,umb<br><br> and after I run the setup again, I received this error message.."Cannot start windows in standard mode. Try Starting windows in 386 enhanced mode by typing win/3"<br><br>Fenris, Yes, I already formatted my hard drive and trying to install my windows95, but got those kind of error messages, and I running the FDISK/MBR to remove the bootsector virus, but I thing it is not a virus because after I disabled the anti virus in the CMOS, it works..but I got those errors message... I just wondering if I will going to format my hard drive again, will it be fixed? and after I re-format it again, should I use the FDISK again to partition it.<br><br>Thanks you for the wonderful help and god Bless.