Verifying integrity of data stored in a dispersed storage memory

A computer comprises:

• an interface;
• a memory;
• and
• a processing module operable to:
• retrieve, from the memory, integrity information of data that is stored as a set of forward error correction (FEC) encoded words in a dispersed storage memory;
• receive, via the interface, FEC encoded words of the set of FEC encoded words from the dispersed storage memory to produce received FEC encoded words;
• decode a unique subset of the received FEC encoded words to produce recovered data;
• generate recovered integrity information from the recovered data;
• compare the recovered integrity information with the integrity information;
• and
• when the recovered integrity information compares unfavorably with the integrity information:
• indicate that at least one of the received FEC encoded words of the unique subset of the received FEC encoded words is corrupt determine whether another unique subset of the received FEC encoded words generated another recovered integrity information that compared favorably to the integrity information;
• when the other recovered integrity information compared favorably to the integrity information, encode another recaptured data to produce another set of FEC encoded words, wherein the other unique subset of the received FEC encoded words is decoded to produce the other recaptured data;
• and
• facilitate overwriting, via the interface, of the set of FEC encoded words with the other set of FEC encoded words within the dispersed storage memory.