lock the taskbar option not working?

it may some times caused due to the option has "greyout"

so to make it enable we should edit the registry

goto->start->run->regdit->

then HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\policies\explorer

delete the locktaskbar key

Networking error 71

Error 71
1. Is someone connected as you? Been giving out your password?

2. Were you disconnected all of a sudden before this happens? You could be 'ghosted' on the server. The ISP can usually "bump" the 'ghost' off through radius.

How to fix Network error 20?

Error 20

1. Make sure the correct modem is selected.

2. Does the modem respond to diagnostics? It may need to be reinstalled.

3. Is RNAAPP loaded into memory after closing the dialer? If so try the RNAAPP fix.

4. Reinstall NCP/DUN/RAS.

Dial-Up Networking Errors(DUNS)

Windows 95, 98, Me, NT, 2000, XP, and Vista.

In later versions of operating systems (NT, 2000, XP and Vista) some of the errors can occur for connections other than traditional dial-up modem connections: they may occur with DSL and VPN (virtual private networking) connections that do not involve dial-up.

NOTE: Some solutions indicate to re-install DUNs and/or TCP/IP. See this Microsoft KB article for Win 95/98 instructions to Remove & Re-install DUNS & TCP/IP. Newer versions of Windows don't allow DUNS uninstall: see Reset DUNS (TCP/IP) in Windows 2000 & XP.

Windows Vista: Dialing directly from the 'Connect To' menu or other shortcuts will not display DUNs error codes - instead, particularly large and unhelpful dialog boxes are shown as detailed here. In order to see any DUNs error codes, you must dial from the 'Manage Network Connections' Window.

Connectoids. In many cases, DUNs Errors can be solved by correcting the properties for your dial-up networking connections.

ERROR 50 - The request is not supported.

600 - An operation is pending.

601 - The port handle is invalid.

602 - The port is already open.

603 - Caller's buffer is too small.

604 - Wrong information specified.

605 - Cannot set port information.

606 - The port is not connected.

607 - The event is invalid.

608 - The device does not exist.

609 - The device type does not exist.

610 - The buffer is invalid.

611 - The route is not available.

612 - The route is not allocated.

613 - Invalid compression specified.

614 - Out of buffers.

615 - The port was not found.

Network Cable Unplugged Errors in Windows

Network Cable Unplugged Errors in Windows

If your network is not functioning properly, you may see "A Network Cable Is Unplugged" messages appear repeatedly on the Windows desktop. Messages may pop up on the screen once every few days or even once every few minutes depending on the nature of the problem. This can occur even if you are using a WiFi wireless network. How can this problem be fixed?
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Several possible causes of "A Network Cable Is Unplugged" messages exist. The error message appears on a computer when an installed Ethernet adapter is seeking to make a network connection.


Disable the Ethernet network adapter if you are not using it. This applies, for example, when running a WiFi home network with computers that have built-in Ethernet adapters. To disable the adapter, double-click the small Network Cable Unplugged error window and choose the Disable option.


Check both ends of the Ethernet cable connected to the adapter to ensure they are not loose.


Replace the Ethernet cable with a different one to verify the cable is not damaged.


Update the network adapter driver software from the manufacturer's Web site.


Change the Link Speed and Duplex settings (using Device Manager) to use "100 Mbps Full Duplex" or "10 Mbps Full Duplex" instead of Auto Detect.


Replace the Ethernet network adapter if it is a removable PCI or PCMCIA card. First remove and re-insert the existing adapter hardware to verify the card is connected properly. If necessary, also replace it with a different card.


The device your Ethernet adapter is connected to, such as a broadband modem or network router may be malfunctioning. Troubleshoot these devices as needed

why my system restarts frequently?

Baby, It's Hot in There
Sometimes this can be caused by an overheating situation. Itunes, RealPlayer, Windows Media player, etc. require a lot of processing power to decompress and decode music files, which can cause the processor or hard drive to get hot.

If your CPU is running at over 60 degrees (C) you might be at risk of burning it out. Some systems shut down automatically when the temperature reaches an unsafe level. Every few weeks I open my system unit and clean the fins on the heat sink that sits under the CPU. When they collect dust it restricts the airflow and prevents proper cooling. You can use a can of compressed air (look at your local office supply store) or an old toothbrush. I just did that on my system and the CPU temperature dropped by ten degrees!

Download the free Speedfan utility and it will tell you the temperature at which your CPU and hard drives are running.

Memory Fails Me...
If you determine that overheating is not the problem, the most likely suspect is bad memory. Trying to access a bad spot in your system memory (RAM) can cause the computer to freak out and restart. The best way to find the culprit is to pop open the system unit, remove (or replace) one RAM stick and see if the problem is solved. Run your system for a while and if the problem goes away, you win! If not... lather, rinse and repeat for each RAM stick until you find the one that's misbehaving.

Don't Do Me Any Favors
There's a setting buried in Windows XP that tells your computer to restart when a system error occurs. If you turn off that option, you may solve your automatic reboot problem.


Click Start, then open Control Panel

Click Performance and Maintenance

Click System

Click on the Advanced Tab

Click Settings in the Startup and Recovery section

Uncheck Automatically Restart in the System failure section

Note that this may prevent the system from restarting, but it can also mask the true problem. As an alternative to this measure, consider what has recently changed on your system. If you have installed new hardware or software, remove it and see if the annoying restart persists. Sometimes downloading the latest driver software from the manufacturer's website will fix hardware incompatibility problems that cause restarts.

Computer Restarts After Download?
Some folks have written to me complaining that their computer automatically restarts itself after every download. And interestingly, most (if not all) mentioned they were using the Firefox browser. If you are using a download manager or download accelerator, this could be causing the problem. Check all the settings in the download manager and tweak if necessary. Or get rid of the download manager and see if the problem remains.

This can also be a virus or spyware problem. I suggest you go through your Control Panel / Add or Remove Programs list and remove any programs you don't need, then run thorough anti-virus and anti-spyware scans. It could even be your anti-virus program fighting with the browser or download manager. Switching to a new anti-virus might help also. See my recommendations for the best free anti-virus software for help with that.

Other Things to Consider
Failing or under-rated power supplies can also cause your computer to restart at seemingly random intervals. Switching out a power supply is really not too hard. Turn off the computer, open the case, disconnect the power cable from the power supply to the motherboard. Unscrew the power supply from the case, and reverse the process to install a new power supply. A 300-watt power supply will be fine in most computers.

And as one reader kindly pointed out, bad capacitors on the motherboard can also cause random reboots. But unless you're kinda geeky and handy with a soldering iron, it's tough to identify and fix this problem. You can find lots more helpful info on bad capacitors at badcaps.net. For most mere mortals, replacing the motherboard as a last resort will be easier than replacing a capacitor.

I also encourage you to read ALL of the comments below, before you rip your hair out, or rip your computer to shreds. It boils down to this... most restart problems are caused by overheating, bad ram, malware, or some other failing component. It can be difficult and time-consuming to identify WHICH of those things is the culprit. The only good solution is to test each one, in sequence (removing and replacing components if necessary), to identify the problem.

how to save life of the battery of Vista operated Laptop?

Now a days those who by Laptop computers they are using Windows Vista Operating System.

In this WindowsVista there is Aerouser interface, Windows Slidebar features. Because of this bettery life gets down.

so go for this url http://www.codeplex.com/vistabattery there will be a programme named vista Battery saver download that programme it will give u a different type of power files that u can install in u'r laptop . this will give good backup for the batt
ery