How to hide C, D or any drive from My Computer?
You can hide A:, B:, C:, D: or any drive from My Computer. Windows Registry has this magic. Your users will not able to see hidden drives from My Computer. It is easy to do this.
First of all open Registry Editor by typing “regedit” in Run Command without quotes.
If you want to hide drives for logged in users only then open this path in Registry Editor.
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

If you want to hide drives for every user of Windows then open this path in Registry Editor.
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
After opening this key create new string key named NoDrives

If you want to hide A: drive then enter value 1 and 2 for B: drive. Here it is table for hide drives.

Drive	Code
A:	1
B:	2
C:	4
D:	8
E:	16
F:	32
C: and D:	12
C:, D:, E:	28

After adding this key log off or restart your windows. If you are using Windows 9x then you must restart your windows. After restarting your windows Open My Computer. You will see that your selected drives are hidden now. If you want to get back your drives in My Computer then simple delete created key above.
Note: If you have any kind of question about this article. Contact me from This Page.

You can easily hide or show run command from Start menu of Windows. First of all you have to log in from user who have Administrative rights and then load Windows Registry Editor by typing “regedit” in Run Command without quots.
If you want to hide Run Command only for logged on user then open this path.
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
If you want to hide Run Command for every user of Windows then open this path.
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer


After opening this path. Create a new key. NoRun (String Type) and enter value 1 in it.

After creating this key restart or log off your Windows to take effects. If you are using Microsoft Windows 98 then you have to restart your windows. After restarting or logging again your windows you can’t see Run Command in your Start menu.
If you want to show again Run Command in Start menu then remove key from Registry which you created above.

This is one of my favorite tweaks as it makes a huge difference to how fast your machine will 'feel'. What this tweak does is remove the slight delay between clicking on a menu and XP displaying the menu.   Go to Start then Run Type 'Regedit' then click 'Ok' Find "HKEY_CURRENT_USER\Control Panel\Desktop\" Select "MenuShowDelay" Right click and select "Modify' Reduce the number to around "100" This is the delay time before a menu is opened. You can set it to "0" but it can make windows really hard to use as menus will open if you just look at them - well move your mouse over them anyway. I tend to go for anywhere between 50-150 depending on my mood.

Many computers take a lot of time to boot (or start ).This is due to many reasons. Some slight changes can do wonders for your system: 1. Press start->run then type msconfig and press enter. Go to the startup tab. Here you will see a list of startup items. These are all the programs that automatically start when you boot your PC. It is these that slow down the boot up process.                                  So uncheck all the unwanted items like ms-office, messengers other utilities that u may not need at startup). Don't uncheck your antivirus software. Restart your Pc to and see for yourself, your pc will now boot faster....        2. A great new feature in Microsoft Windows XP is the ability to do a boot defragment. This places all boot files next to each other on the disk to allow for faster booting. By default this option is enabled, but on some systems it is not, so below is the information on how to turn it on: Go to Start Menu and Click Run Type in regedit then click ok Find "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\BootOpt imizeFunction" Select "Enable" from the list on the right Right on it and select "Modify" Change the value to Y . Reboot your Pc and see the change yourself.   3.SPEED UP BOOT BY DISABLING UNUSED PORTS.!! You may have tried many tweaks like modifying windows XP start-up applications, prefetches, unload DLLs method, etc. And yes those methods do work for me.                     I have just accidentally found out another way to give you an extra boost in windows XP's boot performance. This is done by disabling your unused devices in Device Manager. for example, if you don't have input devices that are connected to one of your USB's or COM ports, disabling them will give you an extra performance boost in booting. Go to Control Panel -> System -> Hardware tab -> device manager Disable devices that you don't use for your PC and then restart.

If you are the kind of person who always likes neatness specially desktop, then here is a small trick for you that will simply remove the Recycle bin icon from desktop. Follow the steps below: [Start] [Run] [Regedit] Registry Key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\ CurrentVersion\Explorer\BitBucket Modify/Create the Value Data Type(s) and Value Name(s) as detailed below. Data Type: DWORD // Value Name: NukeOnDelete Setting for Value Data: [0 = Use Recycle Bin / 1 = Permanently Delete] Exit Registry and Reboot   Another Method start->run->gpedit.msc-> user configuration ->desktop->remove recycle bin from desktop->double click->change it not configured to enable->apply and ok. now come to start->run->gpupdate.exe and press enter. your recycle bin icon is gone from desktop nad you will need to revert your settings for get that back. after reverting setting make sure to run gpupdate.exe command.

This tweak reduces the time XP waits before automatically closing any running programs when you give it the command to shutdown. Go to Start then select Run Type 'Regedit' and click ok Find 'HKEY_CURRENT_USER\Control Panel\Desktop\' Select 'WaitToKillAppTimeout' Right click and select 'Modify' Change the value to '1000' Click 'OK' Now select 'HungAppTimeout' Right click and select 'Modify' Change the value to '1000' Click 'OK'   Now find 'HKEY_USERS\.DEFAULT\Control Panel\Desktop' Select 'WaitToKillAppTimeout' Right click and select 'Modify' Change the value to '1000' Click 'OK' Now find 'HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\' Select 'WaitToKillServiceTimeout' Right click and select 'Modify' Change the value to '1000' Click 'OK'

Copy the following code,paste in any notepad and save as "regtools.vbs" file. Just double click it and you will get yor regedit enabled.(Be careful to copy the code exactly as presented here including everything. Code goes here.......   'Enable/Disable Registry Editing tools '© Doug Knox - rev 12/06/99 Option Explicit 'Declare variables Dim WSHShell, n, MyBox, p, t, mustboot, errnum, vers Dim enab, disab, jobfunc, itemtype Set WSHShell = WScript.CreateObject("WScript.Shell") p = "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\" p = p & "DisableRegistryTools" itemtype = "REG_DWORD" mustboot = "Log off and back on, or restart your pc to" & vbCR & "effect the changes" enab = "ENABLED" disab = "DISABLED" jobfunc = "Registry Editing Tools are now " 'This section tries to read the registry key value. If not present an 'error is generated. Normal error return should be 0 if value is 'present t = "Confirmation" Err.Clear On Error Resume Next n = WSHShell.RegRead (p) On Error Goto 0 errnum = Err.Number if errnum <> 0 then 'Create the registry key value for DisableRegistryTools with value 0  WSHShell.RegWrite p, 0, itemtype End If 'If the key is present, or was created, it is toggled 'Confirmations can be disabled by commenting out 'the two MyBox lines below If n = 0 Then  n = 1 WSHShell.RegWrite p, n, itemtype Mybox = MsgBox(jobfunc & disab & vbCR & mustboot, 4096, t) ElseIf n = 1 then  n = 0 WSHShell.RegWrite p, n, itemtype Mybox = MsgBox(jobfunc & enab & vbCR & mustboot, 4096, t) End If