If Ninrick's suggestion doesn't work, you could try frying it by evoking the fire element into the laptop.
Electronics, especially laptops are very susceptible to overheating and getting burned out. I have never tried this myself, but I feel that frying a laptop by evoking fire into it daily should be effective in destroying it.
I'd suggest visualizing in your mind the laptop getting completely incinerated, turning to ash in a blazing flame while vibrating Tejas and evoking fire into it.
However, you might want to be careful with this as you could potentially set their house on fire as well with this method. Still heat and electronics don't mix well, so my best guess is that this should be very effective.