Wireless Internet disconnects when i close laptop lid

Your welcome!

Have you ran it through Windows updates yet? SP1 might include a resolution to the battery management problem.

azeem12 said:

Anak what you mean by "ran it through Windows updates?", can you please explain?

Have you checked for updates yet?

Example:
Go to, Control Panel\All Control Panel Items\Windows Update.
Then click on "Check for Updates"


I also found two direct downloads for manuals for the B570:

Service Manual, Be careful with this one, there are some areas only meant for Service Techs. 88pages:
http://download.lenovo.com/UserFiles...ual%20V1.0.pdf

Owners manual, for the general public. Its link is for the Americas, and there might be some differences, but should suffice. 70pages:
https://www.lenovo.com/shop/americas...b570_ug_en.pdf

azeem12 said:

okkk, I got your point. When i installed windows 7 yesterday than i let this option enabled and some of the updates have been downloaded also and installed...
today i found that this windows 7 is not genuine and one of my friend told me that turn off windows updates until you get genuine windows 7, so i turned it off!!!
what is your comments about this?

How did you find out, are you sure?

Where did you buy your laptop, did it already have 7 installed?
If it did I'd take it back, and hit the seller over the head with it, unless s/he gave me a refund or installed a genuine copy!

If it is not genuine then turning Updates off is a good (?) thing.

I believe one of the Forum rules forbids me from helping you any further until you rectify the situation.

azeem12 said:

one more thing that i was unable to install windows xp on this machine. Whenever system tried to load setup files from xp cd, a fatal error generates saying that unexpected system shutdown required.
Its been nice and helpful to talk with you, waiting for your response.

Are you trying to install XP along with 7 to have a dual-boot?

Your fatal error could be because 7 really isn't genuine. Is your copy of XP genuine?

Anak said:

Hi azeem12, welcome to 7F, and Happy New Year! :)

I would advise not to take your battery down to 0%.

Caution should be exercised not to discharge a lithium-based battery too low. Discharging a lithium-based battery below 2.5V may cut off the battery’s protection circuit. Not all chargers accommodate a recharge on batteries that have gone to sleep because of low voltage.

Source: Chapter 5: Discharge Methods

2.5v on a 4400mah battery equals 5.68%, so anywhere between 5, and 10% would be okay.

Then follow GianniDPC second step.

One part of this post is incorrect.

One cannot divide apples into oranges. That is, Volts into Milliamperes per hour (Mah) one or the other has to be converted or if you know the voltage of the battery you can use that.

The voltage of the B570 battery is 11.1v.
2.5 divided by 11.1 = 0.2252252252252252 or 22.5225% rounded off to 22.5%.
So anywhere between that, and 25% would be okay.

You can still follow GianniDPC second step.

We finished dinner, and just as I was sitting down to watch some American Football it hit me, that my earlier post was incorrect.

In order to narrow down the reason for your unexpected fault you will have to go here: Crashes and Debugging - Windows 7 Forums, and start a new thread there.

Describe your problem as best as you can, usually it is best when you describe it in a step by step fashion.

Pay particular attention to the notice at the top, and follow the BSOD posting instructions in the link.

Notices
Attention: azeem12
Before posting a BSOD thread, please read the instructions here: Blue Screen of Death (BSOD) Posting Instructions
If you need to add new information like the dump files, please make a new post in your initial BSOD thread. Please do not make an extra new thread.