A small brown spot is on all of the pictures I've taken starting today. Looked back at pictures from last week and didn't see it. Same place all pictures, both lens.

is your laptop is having any inbuilt operating system....
if yes then first re-install the OS so that it can get back to original settings...
if no then place a OS cd and install in new partition....

Reinstall the operating system

Here are some troubleshooting steps for the lens error problem. And here's a video summary of those steps:

There is a small turning button on the back of the keyboard to change the screen tone and brightness,happend to me and this fixed it,i thought mine was broken too,till i spotted it

Take the window track or regulator assy & glass,
to an auto glass place, to be proper secured

if you have ever looked under these cars they have places for oil to go but not on the ground. keep and eye on the oil. did it run a little smoother with oil

The camera is telling you that the internal memory is full. To get your card to work, you must clear it. With no card in the camera, go into the menu and find "format" and follow the on-screen instructions to erase the internal memory. Then, your card should work unless you formatted it in the computer, in which case you'll have to format (completely erases it) it in the camera.

Watch this video and try to use it recover your photo. It's very easy to use. Hope you like it.

Your sensor may have gotten dust on it to confirm this, set camera to a small aperture eg. f22 and take a picture of a white page then set camera to a large aperture eg f3.3 ant take the same picture. If it is dust you will see the spot on the shot taken at f22 and not the one taken at f3.3. This can be solved by having the sensor cleaned. If the gray spot is on both images you most likely have a damaged sensor

Oral Davis
Trinidad West Indies