Using Google Translate I get the following translation

English　　　　Japanese

"bloatware" ⇒「bloatware」

"crapware" ⇒「クラップウェア」

"craplets" ⇒「馬鹿」(whether that's the translation or they're just trying to tell me something I don't know).

How would I say these words in Japanese?

Would a Japanese person (someone with a basic knowledge of PC's) understand: It's the「ブロートウェア/クラップウェア/馬鹿」that's eating up all your resources. (Full sentence said in Japanese of course)