I am not sure about diagnostic software but I think the other part of Âyour question is far more important...
you suggest that your computer is showing its age. Â not knowing much else here I may think of some common situations and offer some solutions.
Windows does slow down with age... Â
for this I often do a fresh install about every 6 months Âthe fresh install helps to clean up system issues, why? ÂI really do not know but it surely does help
A bigÂtime-saverÂis to clone your system just afterÂre-installation. Â I like to use Clonezilla on USB, this step can save many many hours the next time you need to refresh
make sure Âyour drivers and main programs are up to date
uninstall unneeded softwareÂ
be especially careful with software running in the background... Â
do consider portable versions which do not install and thus are worry free
use lighter versions of the same type of programs... Âi.e. ÂFoxitreader or ÂSumatra Âinstead of Adobe reader, beÂespeciallyÂcareful with antivirus programs which can drastically slow down your computer as they run in the background
keep the gunk out - Âuse something like CCleaner to clean out cookies and other temp files that accumulate when you surf the web
While SAT scores might predict your success in the classroom, beyond a basic level of intelligence your passion, motivation, initiative, networking and hustle matter more than your grade-point average. ÂDale Stephens founder of UnCollege.org