Can spyware or viruses spread from a desktop to laptop via wireless router?

I’m worried because my desktop has spyware on it. I’m wondering if my laptop is also vulnerable even if it’s wireless.

no ,can you fk,,, dowmload this onto the infected pc.. (it’s free) and run a scan.. http://www.malwarebytes.org/

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Alienware M17x 17-Inch Gaming Laptop (Space Black), Intel Core i7-740QM 1.73GHz, 8GB DR3 Memory, 500GB Hard Drive, 1GB ATI Mobility Radeon HD 5870 Graphics, Windows 7 Home Premium $2,799.84 Take control of your gaming with the Alienware M17X multimedia laptop (model m17x10-1847DSB), which features a thermally optimized case design with aggressive lines and an in-your-face attitude. It features a stunning, high-definition 17-inch display and a powerful Intel Core i7 processor–featuring four cores of intelligent processing power. Additionally, it offers ultra-fast DDR3 system memory a…

Alienware M17x 17-Inch Gaming Laptop (Space Black), Intel Core i7-740QM 1.73GHz, 8GB DR3 Memory, 640GB Hard Drive, 1GB ATI Mobility Radeon HD 5870 Graphics, Windows 7 Home Premium $2,599.84 Take control of your gaming with the Alienware M17X multimedia laptop (model m17x10-1847DSB), which features a thermally optimized case design with aggressive lines and an in-your-face attitude. It features a stunning, high-definition 17-inch display and a powerful Intel Core i7 processor–featuring four cores of intelligent processing power. Additionally, it offers ultra-fast DDR3 system memory a…