strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.
Autoruns - See what programs are configured to startup automatically when your system boots and you login.
ftrace - A function tracer for the Linux kernel.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Valgrind - Valgrind is an instrumentation framework for building dynamic analysis tools.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC