Executable files should never change size. The contents of your document or the original settings have been changed. Also, maybe a password was automatically set or some of your files were deleted. Again, check to make sure that no one else was using your computer and reset these properties or accidentally deleted your files. When a virus starts to take up space in memory, then the amount of time to execute programs may start slowing down.
Different viruses cause different symptoms.
However, sometimes some unusual things happen because the software doesn't work properly with your computer's hardware configuration, not because it's infected. Inc. All Rights Reserved. Lycos is a registered trademark of Carnegie Mellon University.