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Check your network card properties through the device manager and disable the “Allow this devide to wake the computer” feature.

1. Right click on your “My Computer” then select Properties.
2. Click Device Manager on the left side of the Properties window.
3. Check your Network card on the Network Adapters (Click on the + sign to expand).
4. Right click on your network card and select properties.
5. Go to the Power Management tab and untick the option there to prevent your network card from ever waking up your Windows.

Find out what wakes up your Windows 7/Vista from its sleep

To find out what event/device woke up your Windows from its sleep state, go to command prompt (type cmd on the Run/Search box and press ENTER), then type this:
powercfg – lastwake

To get the most detailed info (and probably easiest) on the device that wakes your Windows up during the sleep, type:
powercfg –devicequery wake_armed

There! You’ll find the culprit I clicked my mouse to wake my Windows up intentionally so that’s why you see an HID compliant mouse on the screenshot above. Yours might be different.

Hope this helps to prevent your computer wakes up from sleep by itself!

If it still doesn’t work:

• Check out your Power Management Options on your Control Panel (Start, Control Panel, Power Settings, Change plan settings, Change advanced power settings).
  -> “Multimedia settings” option, “When sharing media.” ->”Allow the computer to sleep.
  -> Check other options one by one while you’re at it.

Original article available here.

If you saved a password for a network drive in windows and want to remove it, press the keys [Windows] + [R] to open the windows command line. Then enter

control keymgr.dll

and click on “OK” to open the windows credential manager which allows you to manage and delete passwords saved in Windows.

This procedure works for Windows XP, Vista and Windows 7.

What are network locations?

A network location automatically sets the appropriate firewall and security settings based on the network type (network location).

Here are Windows 7’s network locations and a brief description of each of them.

• Home Network: For home networks or when you trust people or devices on the network. Computers on a home network can belong to a Homegroup. Network discovery is also turned on. Network discovery allows the computer to see other computers and devices on the network and other computers and devices can see it.
• Work Network: For a small office or other workplace networks. Network discovery is turned on but it can’t belong to or create a Homegroup.
• Public Network: For public places like a coffee shop or the airport. The computer is completely hidden from other computers on the network. The computer can’t see other computers on the network as well.
• Domain Network: For domain networks in large corporate environments. This type of network is controlled by a network administrator and can’t be changed.

How to Change the Network Location

In this example I’m going to change my network location from Work to Home.

1. Open Control Panel from the Start menu.
2. Open Network and Sharing Center in the Control Panel.
   Note: If Network and Sharing Center is not available, change View by to Large icons at the top right of the Control Panel.
   
3. Select the current network location in the active networks section (work network in this example).
   
4. Select the new network location
   

This advice was found here.