MacBook Pro 10.9.5 acting crazy
Sorry for the title, but the software is acting up. The screen will disappear and the dashboard shows up. Windows start twitching or closing completely. Windows start sliding to the right and the dashboard appears on the left and then takes over. I've run Disk Doctor to no avail. I could not find any malware/virus apps for this old of an OS. I am afraid to download anything from the internet. Any help would be greatly appreciated. I've backed up to time capsule, but I'm sure that has backed up the malware as well. Thanks.
MacBook Pro, OS X Mavericks (10.9.5)