Answers
Software that scans files and downloads for known threats and blocks any match it finds.
Software written to cause harm, such as viruses, trojan horses and spyware.
Programs that carry out housekeeping tasks to keep a computer system running efficiently.
Reorganising the parts of files on a hard disk so they are stored in consecutive locations.
Isolating a file found to contain a virus so it cannot run or spread.
A copy of data kept on a separate disk so it can be restored if lost.
Recovering the data in a damaged file so that it can be opened again.
A file whose contents have been partly lost or altered, so it cannot be opened as normal.
A file whose parts are stored in separate, non-consecutive locations on a disk.
Reducing the size of a file or folder so that it takes up less storage space.