.Net Framework 3.5 SP1 full setup installer

Hear you can download full package of Microsoft .NET Framework 3.5 SP1: dotnetfx35.exe (232 MB)

So you no need install bootstrapper that will still need to download more files via Internet.

Unable to open Drive C: & D: by double click

Unable to open drive C: or D: by double cliking?
Go to Start >> Run and type Regedit
find "mountpoints2" with the help of "Ctrl+F"
delete that entry
repate with "F3" and delete all mountpoints2 entries.
come out.
Try to open now your "C:"

It must be working now...

Fixing damaged Master Boot Record

“Error loading operating system” is appearing? Your MBR (Master Boot Record) may be damaged.

Don’t scary …

If the MBR is damaged, the BIOS can't locate and start the operating system. When your BIOS detects a damaged MBR or boot sector, you'll see message Error loading operating system.

With the help of Recovery Console we can come up.

1.Restart computer with Windows XP setup CD.

2.Boot from CD

3.After few minutes, select Recovery Console option by hitting “R”.

4.When Recovery Console starts, it will prompt you to enter a number corresponding to the Windows XP installation that you need to repair. In most cases, you'll enter "1" (which will be the only choice). If you press ENTER without typing a number, Recovery Console will quit and restart your computer. And enter your administrator password.

5.At the prompt, type fixmbr and then verify that you want to proceed.

6.By typing “help” you can find so many commands which may help you further.

7.If you would like to repair boot sector try fixboot.

That's all...

Enabling Task Manager, Regedit, etc.

Be aware, that careless Registry editing can make your system malfunction or even keep you from starting Windows.

Enable Task Manager

1. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f
2. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f

Enable Regedit

1. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f
2. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f

Folder Option & Hidden Files

1. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 0 /f
2. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 0 /f
3. Start> run
reg add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v Hidden /t REG_DWORD /d 1 /f
4. Start>run
reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL /v CheckedValue /t REG_DWORD /d 1 /f

reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL /v DefaultValue /t REG_DWORD /d 2 /f
reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\NOHIDDEN /v CheckedValue /t REG_DWORD /d 2 /f

reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\NOHIDDEN /v DefaultValue /t REG_DWORD /d 2 /f

Enable CMD

Open Run and paste the following codes.reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableCmd /t REG_DWORD /d 0 /f