Step 1 :
Step :2
wasn't sure what went wrong with my computer
like many others out there, i've done all the preliminary checks and scans for malware or viruses.
and i chanced upon users, mentioning to change the power options.
It didn't work for me in the first place of switching it from balanced to performance. As mine it is always on performance.
Solution
So i did a check on all the components and i came upon this settings named minimum proccessor %. In awe, it was at 100% minimum and 100% maximum.
Step 1 :Hit the Change Plan Settings*
Step 2 : Press Change Advanced Power Settings
Step 3 :Under Processor Power Manageme nt
Look into Minimum Processor State
Im not exactly a computer expert. but its logical that, when minimum disk and maximum is of the same figure. it overclocks.
i've amended it to 20-30% for minimum and the disk usage problem is cured after a trial run of gaming - heroes of newerth.
Cheers to all and i hope this can solve your problem of ntoskrnl - 100% disk usage
Jyen~