This error is caused in your computer just by adding up a RAM. If you have recently added a RAM to the computer, I would first prefer you to power off your computer, open it and take away the added RAM. If you prolong to get the alike issue or you have not added RAM, then I would suggest that you press the F8 key as your computer is booting when the screen says "Starting MS DOS". This will give a step by step verification on time. Press "Y" to say yes to the whole thing that comes up until you encounter the EMM386 error message.
Once you have positioned the line causing this EMM386 error, reboot the computer and press F5 when the screen says "Starting MS-DOS."
If you receive this error on your EMM386 line, ensure that your EMM386 line only reads
the following message:
DEVICE=C:\Windows\EMM386.EXE NOEMS