Tune up utilities is one of the worst application ever made by AVG. and its not very fast and searching can take lots of times and also it have limited customer support option
And tune up utilities also cannot find out a duplicates file from ethernet and cannot delete it and good tools that actually recovers and improve the performance like disk error check up and hard disk fragmenter is premium . we pay$3.99 to buy these good tools that are totally and also this is not free. It working on trail version until we not purchase it.
Disadvantage
If we tune up our computer now and after several time the computer will remain its same state and also it deleted some important registries file from the system.