Help Comodo Time Machine Made Vista Unbootable

i installed comodo time machine on my new 32 bit vista computer it asked me to restart and then it failed to boot up so i had to re install vista it took forever the programs i had were avast antivirus and some other browsers like firefox please i want to use this program this happened twice already

There are known issues with CTM and Avast.
There are also known issues with CTM corrupting the Master Boot Record on computers making them unbootable. The only way to fix this is with a reformat and reinstall of the OS.
Sorry but you will not find a simple solution.