Task Manager Disabled??? Don't worry

this is most favorite computer problems ....

here r 2 solution.  

SOLUTION 1:
Click Start --> Run
Enter gpedit.msc in the Open box and click OK
In the Group Policy settings window, select User Configuration
Select Administrative Templates
Select System
Select Ctrl+Alt+Delete options
Select Remove Task Manager
Double-click the Remove Task Manager option
Disable that option

SOLUTION 2:
Click on Start >> Run and in the Open box type:

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f

How to speed up Mozilla Firefox

1. Type “about:config” into the address bar and hit return. Look for the following entries:

network.http.pipelining
network.http.proxy.pipelining
network.http.pipelining.maxrequests

Normally the browser will make one request to a web page at a time. When you enable pipelining it will make several at once, which reallyspeeds up page loading.

2. Alter the entries as follows:

Set “network.http.pipelining” to “true“

Set “network.http.proxy.pipelining” to “true“

Set “network.http.pipelining.maxrequests” to some number like 30. This means it will make 30 requests at once.

3. Right-click anywhere and select New-> Integer.
Name it “nglayout.initialpaint.delay” and set its value to “0″.
This value is the amount of time the browser waits before it acts on information it recieves

Speedup Your Folder Browsing

You may have noticed that everytime you open my computer to browse folders that there is a slight delay. This is because Windows XP automatically searches for network files and printers everytime you open Windows Explorer. To fix this and to increase browsing significantly:

1. Open My Computer
2. Click on Tools menu
3. Click on Folder Options
4. Click on the View tab.
5. Uncheck the Automatically search for network folders and printers check box
6. Click Apply
7. Click Ok
8. Reboot your computer