How to make a file of the size you want ?
Let us assume you want to make a file of size 10000kb
Convert it to bytes -> 10000*1024 which comes out to be 10240000 bytes

Open calculator (win key+r -> type in calc )
Choose view mode to be Scientific one
Type in 10240000 and convert it to hex it comes out to be 9C4000
Convert this value to 8 digits by padding zeroes to its left -> so finally it comes out be 009C4000

Open Command Prompt (win key + r -> type in cmd )
Type DEBUG filename.dat
it'll show file not found error ,ignore it
Type RCX -> Enter -> then last four hexadecimal numbers i.e. 4000 ->Enter
Type RBX -> Enter -> then first four hexadecimal numbers i.e. 009C->Enter
Type W ->Enter
Type Q ->Enter

W stands for write and Q for quit

Now check the file you just made by dir command ->dir filename.dat

Using the same technique you can make files as big as you want

Here is an image to show how exactly everything can be done

Creating a ShutDown Icon

Navigate to your desktop. On the desktop, right-click and go to New, then to Shortcut (in other words, create a new shortcut). You should now see a pop-up window instructing you to enter a command line path.
Use this path in "Type Location of the Item"
SHUTDOWN -s -t 01
If the C: drive is not your local hard drive, then replace "C" with the correct letter of the hard drive. Click the "Next" button. Name the shortcut and click the "Finish" button. Now whenever you want to shut down, just click on this shortcut and you're done.

Lock ur PC just by double clicking Mouse

You can lock your XP workstation with two clicks of the mouse. Create a new shortcut on your desktop using a right mouse click, and enter 'rundll32.exeuser32.dll,LockWorkStation' in the location field.Give the shortcut a name you like. That's it -- justdouble click on it and your computer will be locked.And if that's not easy enough, Windows key + L will do the same.

Brand Windows with Your Name

Let's do some fun stuff today....
open notepad dump the following lines into it and save it with the name OEMINFO.INI in the c:\windows\system32 directory:
-------------------------------------------------------------------------------------
[General]
Manufacturer=Your Name
HereModel=Your Model Here
[Support Information]
Line1=Your Name Here
Line2=Your Address Here
Line3=Your Email Address Here-------------------------------------------------------------------------------------
1. Save the file.
2. Then make a right click on my computer select properties, in the general tab a button will be highlighted (support information) make a click on it, you will be able to see the changes.
3. Now if you want to display some more information then simply increase the line in the file
.ex: Line4=Your Working Hours Here

How to Shutdown PC at a Specific Time

trick to shutdown at a specific time, for example you wish to shutdown at 11:35am. Type this in

start=>Run

Type Code: at 11:35 shutdown -s

TO ABORT:
Code:shutdown -a

Amazing trick to lock folder

This 1 is amazing trick to lock u r folder
using this trick not only lock u r folder but also hide it
here it is

copy following program:-

cls
@ECHO OFF
title Folder Locker
if EXIST "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" goto UNLOCK
if NOT EXIST Locker goto MDLOCKER
:CONFIRM
echo Are you sure u want to Lock the folder(Y/N)
set/p "cho=>"
if %cho%==Y goto LOCK
if %cho%==y goto LOCK
if %cho%==n goto END
if %cho%==N goto END
echo Invalid choice.
goto CONFIRM
:LOCK
ren Locker "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
attrib +h +s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
echo Folder locked
goto End
:UNLOCK
echo Enter password to Unlock folder
set/p "pass=>"
if NOT %pass%==type your password here goto FAIL
attrib -h -s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
ren "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" Locker
echo Folder Unlocked successfully
goto End
:FAIL
echo Invalid password
goto end
:MDLOCKER
md Locker
echo Locker created successfully
goto End
:End

now go for following few steps
1>copy above folder into notepad.
2>delete the text "type your password here" in the above program & type u r password there.
3>save that file by extension .bat ( name is u r choice)
4>now on ur screen there is a bat file appear.
5>double click on that file.
6>u will see a folder by name locker.
7>save the files in that folder.
8>double click on the file u created with .bat extension & it will ask u whether to lock the folder or not. enter y to lock.
9>the folder will become hidden.
10>to open that folder double click on that bat file
11>type ur password & open that folder.

Improve your pc's performance

Go to run and type "services.msc". A list of background services will be displayed and clicking on each will display a brief description. Here is a list of services you can disable if you have a standalone computer:
1.Computer Browser.
2.Messenger.
3.Net Logon.
4.Net meeting remote desktop share.
5.Performance logs and alerts.
6.Network provisioning service.
7.Qos RSVP.
8.Remote desktop help.
9.Remote Registry.
10.TCP/IP netbios helper service.
11.Terminal Services.
12.Wireless Zero Configuration.
13.Smart Card.

Note:Some sevices may be already disabled.
This will free some space on your memory

How to Hide the drives(c,d....etc) in MY COMPUTER

This is a great trick you can play on your friends. To disable the display of local or networked drives when you click My Computer.


1.Go to start->run.Type regedit.Now go to:


HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

Now in the right pane create a new DWORD item and name it NoDrives(it is case sensitive). Now modify it's value and set it to 3FFFFFF (Hexadecimal) .Now restart your computer. So, now when you click on My Computer, no drives will be shown(all gone...). To enable display of drives in My Computer, simply delete this DWORD item that you created.Again restart your computer.You can now see all the drives again. Magic........lol....

Change the Title Text of ur Yahoo Messenger

Here’s how you change the title text that appears at the top of the Messenger window. By default, this is “Yahoo! Messenger”, followed by your status. Simply edit the ymsgr.ini file, which you will find in the same folder as the Messenger program, in your Program Files folder. Locate the file and open it in Notepad. Then, at the end, add the following:

[APP TITLE]
caption=YOUR TEXT

Here, “YOUR TEXT” is whatever you want in the title bar. Save the file and close Messenger. When you restart it you will see your text in the title bar.

Creating Icons with No Name

A funny trick You can do using Notepad in Windows XP.
Open Notepad.Type the words as follows:Bush hid the facts
Now save the file (give it any name you like), close the notepad.open it again.yuu will see Square characters (or) Chinese letters instead of the words you had written.It Works Only with XP.

Funny Trick

A funny trick You can do using Notepad in Windows XP.
Open Notepad.Type the words as follows:Bush hid the facts
Now save the file (give it any name you like), close the notepad.open it again.yuu will see Square characters (or) Chinese letters instead of the words you had written.It Works Only with XP.

MS WORD Fact

Open Microsoft Word and type
=rand (200, 99)
And then press ENTER
and see the Magic

See Hidden Files Using DOS

Generally we see the hidden files in our computer using Tools>Folder options>View>Show hidden files and folders.
Instead,we can use Dos as shown
at command prompt just typeC:\>dir /ah this command displays all the hidden folders in C drive

To Disable Send Error Report to Microsoft

Often the systems with Winxp prompts asking us to Send the Error report to Microsoft whenever system is encountered with an error..Below is a way to disable this feature
1. Open Control Panel
2. Click on Preformance and Maintenance.
3. Click on System.
4. Then click on the Advanced tab
5. Click on the error reporting button on the bottom of the windows.
6. Select Disable error reporting.
7. Click OK
8. Click OK

Show ur Name After Time in Task bar

Ever thought of changing the display format of time in the taskbar of ur windows??Then here is a trick to display ur name in place of AM r PM.
1)Click Start
2)Go to Control Panel->Regional and Language Option
3)Click Customize(beside English US)->Go to Time tab
4)Change AM symbol and PM symbol from AM and PM to ur name(or anyother name)->Click Ok
5)Now go to time in taskbar and Double Click it to open "Date and time property"
6)Look place where time changes in digital form i.e. 12:42:52 AM , click to arrow to change the AM or PM by selecting and press arrow. It will Show ur name or name that was entered by u, Apply -> OK

Folder Lock

Lock ur Folders by a simple procedure

Hiding your data and using softwares for locking folders are obsolete now..and after all you need to remember the password set to lock the folder while unlocking.
By using a simple trick we can lock and unlock folders without using any so called "Folder Lock" softwares.The trick is as follows

1)Make a folder on the desktop and name it as "folder" or any other desired name.

2)Now, open notepad and copy paste the followingren folder folder.{21EC2020-3AEA-1069-A2DD-08002B30309D}and save the file as "lock.bat"(here .bat means batch file).This file act as lock for the folder created.

3)Now again,open the notepad and copy paste the followingren folder.{21EC2020-3AEA-1069-A2DD-08002B30309D} folderand save the file as "key.bat".This file act as key for the locked folder.

4)Now, double click lock.bat to lock the folder and if you open your folder, control panel willopen up !(you can also see the change in folder icon)

5) Now, double click key.bat to open the folder and now if you open your folder, you can access your data inside the folder again !

6)Lock your folder and hide the key.bat somwehre else in hard disk.

7)If you want to unlock,just cut paste the key on desktop and double click it.

Useful Run Commands

Run Commands
To Access?. - Run Command
Accessibility Controls - access.cpl
Add Hardware Wizard - hdwwiz.cpl
Add/Remove Programs - appwiz.cpl
Administrative Tools - control admintools
Automatic Updates - wuaucpl.cpl
Bluetooth Transfer Wizard - fsquirt
Calculator - calc
Certificate Manager - certmgr.msc
Character Map - charmap
Check Disk Utility - chkdsk
Clipboard Viewer - clipbrd
Command Prompt - cmd
Component Services - dcomcnfg
Computer Management - compmgmt.msc
Date and Time Properties - timedate.cpl
DDE Shares - ddeshare
Device Manager - devmgmt.msc
Direct X Control Panel (If Installed)* - directx.cpl
Direct X Troubleshooter - dxdiag
Disk Cleanup Utility - cleanmgr
Disk Defragment - dfrg.msc
Disk Management - diskmgmt.msc
Disk Partition Manager - diskpart
Display Properties - control desktop
Display Properties - desk.cpl
Display Properties (w/Appearance Tab Preselected) - control color
Dr. Watson System Troubleshooting Utility - drwtsn32
Driver Verifier Utility - verifier
Event Viewer - eventvwr.msc
File Signature Verification Tool - sigverif
Findfast - findfast.cpl
Folders Properties - control folders
Fonts - control fonts
Fonts Folder - fonts
Free Cell Card Game - freecell
Game Controllers - joy.cpl
Group Policy Editor (XP Prof) - gpedit.msc
Hearts Card Game - mshearts
Iexpress Wizard - iexpress
Indexing Service - ciadv.msc
Internet Properties - inetcpl.cpl
IP Configuration (Display Connection Configuration) - ipconfig /all
IP Configuration (Display DNS Cache Contents) - ipconfig /displaydns
IP Configuration (Delete DNS Cache Contents) - ipconfig /flushdns
IP Configuration (Release All Connections) - ipconfig /release
IP Configuration (Renew All Connections) - ipconfig /renew
IP Configuration (Refreshes DHCP & Re - Registers DNS) -ipconfig /registerdns
IP Configuration (Display DHCP Class ID) - ipconfig /showclassid
IP Configuration (Modifies DHCP Class ID)
IP Configuration (Display DHCP Class ID) - ipconfig /showclassid
IP Configuration (Modifies DHCP Class ID) - ipconfig /setclassid
Java Control Panel (If Installed) - jpicpl32.cpl
Java Control Panel (If Installed) - javaws
Keyboard Properties - control keyboard
Local Security Settings - secpol.msc
Local Users and Groups - lusrmgr.msc
Logs You Out Of Windows - logoff
Microsoft Chat - winchat
Minesweeper Game - winmine
Mouse Properties - control mouse
Network Connections - control netconnections
Network Connections - ncpa.cpl
Network Setup Wizard - netsetup.cpl
Notepad - notepad
Nview Desktop Manager (If Installed) - nvtuicpl.cpl
Object Packager - packager
ODBC Data Source Administrator - odbccp32.cpl
On Screen Keyboard - osk
Opens AC3 Filter (If Installed) - ac3filter.cpl
Password Properties - password.cpl
Performance Monitor - perfmon.msc
Performance Monitor - perfmon
Phone and Modem Options - telephon.cpl
Power Configuration - powercfg.cpl
Printers and Faxes - control printers
Printers Folder - printers
Private Character Editor - eudcedit
Quicktime (If Installed) - QuickTime.cpl
Regional Settings - intl.cpl
Registry Editor - regedit
Registry Editor - regedit32
Remote Desktop - mstsc
Removable Storage - ntmsmgr.msc
Removable Storage Operator Requests - ntmsoprq.msc
Resultant Set of Policy (XP Prof) - rsop.msc
Scanners and Cameras - sticpl.cpl
Scheduled Tasks - control schedtasks
Security Center - wscui.cpl
Services - services.msc
Shared Folders - fsmgmt.msc
Shuts Down Windows - shutdown
Sounds and Audio - mmsys.cpl
Spider Solitare Card Game - spider
SQL Client Configuration - cliconfg
System Configuration Editor - sysedit
System Configuration Utility - msconfig
System File Checker Utility (Scan Immediately) - sfc /scannow
System File Checker Utility (Scan Once At Next Boot) - sfc /scanonce
System File Checker Utility (Scan On Every Boot) - sfc /scanbo