New
#11
You must have used one of the tweaks in Glary utilities, as defragging would not cause those kind of probs.
Many of us use 3rd party CCleaner and defraggers like Auslogics which are better than those utilities in Win7, however tweaking is another thing: Win7 does not need tweaking beyond normal system settings within itself.
Be warned: Tweaking will always come back to bite you in Win7! You cannot tweak a system this lightweight and spare without repercussions.