Computer Tricks | Cool Computer Tricks

[HOW TO]Remove NTDETEC1.exe

Filed under PC Troubleshooting, Security Tips, Virus Removal Tuts by Bhavyesh on March 21, 2008 at 3:41 am {4 comments}

If you’re using the Operating System called Windows, chances are that you might have already come across the ntdetec1.exe virus. Or you will, sooner or later.

Its official name is W32.Ceted and it is a worm that copies itself to all shared and removable drives and spreads when the user double clicks on it to open it. If a system is infected, it creates a folder called ntdetec1 in your System Drive which is NOT visible via Explorer or Command prompt.

Related files:
\ntdetec1\ntdetec1.exe
\ntdetec1\cmrss.exe
\ntdetec1\run.exe
\ntdetec1\shell32.exe
\ntdetec1\drivelist.txt
\ntdetec1\child\autorun.inf
\ntdetec1\child\ntdetec1.exe

Symptoms:
1. Task Manager closes as soon as it launches.
2. RegEdit may be inaccesible
3. Folder Options may be inaccessible

When I scanned using some anti-virus software, Nod32, Symantec AV Corporate, McAfee and AVG failed to detect the files, even in Safe Mode.

To remove it, run the following commands at the command prompt:

taskkill /im cmrss.exe
taskkill /im ntdetec1.exe
taskkill /im shell32.exe

Now, make sure you are in the root drive of your system. For example, if your Windows in installed in C:, make sure your prompt shows C:\>
Now, run the command..

attrib ntdetec1 -s -h -r /s /d

(s->system,h->hidden,r->read only)

This will make the folder visible in explorer. Now you can Shift+Delete the folder from explorer.

Also, you might need to delete the following registry key (if it is present)

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\policies\Explorer\ Run\"winlogon" = "C:\ntdetec1\run.exe"

Congratulations, this will remove all known traces of the above worm.

And remember, next time you use someone’s PD, before you access it, goto your command prompt and delete the autorun.inf file if any

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11 ways to make your PC faster

Filed under Computer tricks, Featured by Bhavyesh on March 18, 2008 at 11:41 am {2 comments}

Your computer running Windows isn’t running in the same speed that it used to run when you first used it. It’s slower, crappy, takes a while to start and tests your patience like anything. There are many reasons for this, let’s try fixing up a few things on your slow Windows PC:

Slow Start Up
There can be a variety of reasons to Windows loading slow during start up. Go to Run, type msconfig and hit enter. Under the ‘Start Up’ tab, uncheck the unwanted programs and press OK. Things should be a bit fine the next time Windows boots.

Another program worth mentioning here is StartUp Delayer which will help in setting after how much time programs should be loaded after Windows boots. For instance, you could set your instant messenger program to load 50 seconds after Windows starts up.

Slow Loading Start Menu
If the Start Menu items are loading slowly, you can open the Registry Editor by typing in the Run menu ‘regedit.exe’ and pressing Enter. Go to HKEY_CURRENT_USER\Control Panel\Desktop. Look for MenuShowDelay, and double click to edit the value. The lower the number specified, the faster the Start Menu will load.

Slow Right Click Context Menu
Probably the Windows Right Click menu on your computer is loading slow because too many programs added unwanted entries there. Just download this program called Mmm, install it and then modify your context menu to remove unwanted items to speed it up.

‘Send To’ Menu Slow Send To Menu
If the Send To menu loads slowly, you can type ’sendto’ in the Run Dialog, and remove unwanted items in the Explorer Window that appears. This should add some speed to it.

Slow Defragmentation
The Windows Defragmenter can’t get any slower. You need to have an alternative to the Windows Defragmenter, and Defraggler is just one of the best ones available in the market. It’s free, and works like a charm and can speed up defragmentation manifold.

Slow loading My Computer Window
my-computer.jpg If the My Computer Window loads slowly, in the Explorer Window, go to Tools >> Folder Options >> View and uncheck ‘Automatically search for network folders and printers”

Slow loading Add or Remove Programs Applet
This is one of the most annoying piece of programs present in Windows, it takes ages to load if you have a considerable number of programs installed on your computer. You can either use the all-in-one CCleaner for this purpose, or get MyUninstaller that comes as a speedy replacement for Add or Remove Programs.

Slow Ending of Unresponsive Programs
If you’ve clicked on ‘End Task’ if any program is running unresponsive, you might have noticed that the program is not terminated immediately. You can alter this by going to Run >> regedit.exe >> HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\ and change this value to 1000.

Disable Animations and Appearance Overhauls to maximize performance
If you’re a serious performance junkie, you probably won’t bother about eyecandy. Go to System Properties in the Control Panel. Click ‘Advanced’, then ‘Performance’ and click ‘Adjust for best performance’. This might boost your PC’s performance up a bit.

Additional Tips:

- Always keep your computer clean. Remove Junk and Unnecessary registry entries. Use CCleaner for this purpose, one excellent tool that just does what it says.

- Don’t keep installing software. Install a program only if it really serves you a purpose.

- Keep as less programs as possible running on the System Tray. This essentially means reducing the number of programs that start during Windows start up.

Thanks to Makeuseof.com

How to increase your internet connection speed

Filed under Computer tricks, Featured by Bhavyesh on March 18, 2008 at 11:38 am {no comments}

If you have Windows XP, try this. Everyone that has tried it says it works, tell us if it works too. You should be logged as Administrator (not even accounts with administrator privileges).

1. Start – Run – type gpedit.msc.

2. Expand the Local Computer Policy / Administrative Templates / Network Branch.

3. Highlight the QoS Packet Scheduler in left panel.

4. In right panel double click the Limit reservable bandwidth setting.

5. On setting tab check the Enabled item.

6. Where it says Bandwidth limit % change it to read 0.

The problem is, XP seems to want to reserve 20% of the bandwidth for itself. Even with QoS disabled, even when this item is disabled. So why not use it to your advantage.

To demonstrate the problem with this on stand alone machines start up a big download from a server with an FTP client. Try to find a server that doesn’t max out your bandwidth. In this case you want a slow to medium speed server to demonstrate this. Let it run for a couple of minutes to get stable. The start up another download from the same server with another instance of your FTP client. You will notice that the available bandwidth is now being fought over and one of the clients download will be very slow or both will slow down when they should both be using the available bandwidth. Using this “tweak” both clients will have a fair share of the bandwidth and will not fight over the bandwidth. Try it and tell us if this works.