I was working perfectly with my PC and Windows95 when I decided to change my CPU. So I replaced the Cyrix 166+ that I had with an Intel 200wMMX. After the installation when I powered the PC everything seems to be allright (I mean the new CPU was correctly identified and no wrong messages) but when the Windows95 appeared everything was frozen. I reboot the PC and the windows started normally. When I opened the control panel-system I saw that there was a problem with the Primary IDE controller (single fifo) and the message "Compatibility mode paging reduces overall system performance. All HDDs using MS-DOS compatibility mode file system". After that I saw that Drive C: (Western Digital AC33100) was accessable but Drive D: ( slave Western Digital AC25400) was not. What can I do?