Windows system crashing is nothing new. When it crashed it was so bad that wifi got turned off. What would we do without wifi! 🙂
Simple steps should resolve this issue and this could be same solution for any laptop.
Goto My Computer -> Properties -> Device Manager -> Network Adapters -> Realtek Wirless LAN. Right click on this and click on enable.
Now everything is back to normal.
PS: This post is for novices. Professionals no bashing!