Hey, i see you are facing a lot of problem due to high disk usage of your system that many
times leads to lagging.Well i have the solution to your problem i found this link on
internet..really a helping article
http://errorcodespro.com/tiworker-exe-high-disk-usage-windows/. At begining i thought it
was because of hard drive failure but i applied the solution it worked very well. You can
find your solution at the given system.