I have some broken images in my gallery which can't be deleted.. i get an an error message when i try to delete it.. " General System Error". This Will happen Everytime since i Upgraded my Software in nearest Nokia Priyority. What is the Permanent Solution for this ?

To delete a single image, summon the image on the screen and touch the Trash icon that appears in the upper-right corner. Choose the Confirm Delete command. The image is gone.
Deleting a video isn't as easy as removing an image: You have to long-press the video thumbnail in an album. The long-press activates multiple-selection mode. For removing a video, however, just touch the Trash icon that appears in the upper-right corner of the screen. Choose the Confirm Delete command, and the video is gone.
You can't undelete an image or a video you've deleted. There's no way to recover such an image using available tools on the Galaxy Tab.
You can apply the Delete command to an entire swath of items in the gallery at once. To do so, you must know the secret, found below:

1. Open the album (pile) you want to mess with.
2. Long-press an image to select it. Instantly, you activate image-selection mode.
   

1. Continue touching images and videos to select them.Or you can choose the Select All command.
2. Perform an action on the group of images or videos.

To deselect items, touch them again. To deselect everything, touch the Done command.
The type of commands you can use on a group of items in an album depends on the group. Some commands, such as Delete and Share, can be performed on any old group. Other commands, such as the image rotation commands, work only with pictures, not with videos.

It may be that you do not have enough memory left on the card/phone to perform the delete.
OR
You may be just seeing thumbnail images which the phone has stored for faster operation time and the actual image is already deleted..
Try switching it off, removing the battery for a full minute (use the second hand on a watch, cos counting in ones head is often incorrect) and replace the battery again.. Hope this helps!
If not, may have to delete the picture via your PC.
OR
You may have to start the phone up in 'safe mode' (When your phone is switched off , Press the Pencil Button and Power Button Together and wait till your phone start up) and then find & delete the picture, and restart your phone normally to exit 'safe mode'

I went through the registry and searching for 'iolo', I deleted all references. Then deleted the files under program files. This worked. I tried going to the hex keys by themselves and that did not work. But I was deleting System Mechanic and Not "PRO".

It may be an unsupported image such as resolution so it does not match or it may contain virus just check it

when i deleted images & videos then shows general system error

You may try this mobile phone photo recovery software which helped me before. You may check out this tutorial
Mobile Phone Data Recovery

Please be noted that your phone memory should show as a drive letter in your explorer, if not, you need to take out your memory card and connect using a card reader, or plug-in to card reader slot if there's any on your computer.

try formatit *#7780#

Most phones have both internal memory and the sim card is a memory on its on. You might have the function to keep a copy of sms in sim as well. So you need to enter the sim memory and delete those SMS's
http://www.lg-expo.com/lg-expo-general-support/sim-card-full/

try for software update

when i deleted images & videos then shows general system error