How to disable security certificate warning on windows XP

 Instructions :
1) Start menu -> Run gpedit.msc
2) Go to Local Computer Policy -> User Configuration
3) Administrative Templates -> Windows Components
4) Attachment Manager and enable "Default risk level for file attachments"
5) Enable "Inclusion list for low file types" and add to this list the file extensions that you want to open without triggering this message.

How to restore missing: regedit and/or msconfig files

sometimes malwares rename/delete : regedit/msconfig.

Make sure you still have the executable files:

C:\WINDOWS\regedit.exe
and
C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe


If you dont have then restore it in the given way:-

put the xp cd and type (where X is the CD drive name):

EXPAND -R X:\I386\MSCONFIG.EX_ C:\WINDOWS\PCHEALTH\HELPCTR\BINARIES

That should restore MSConfig.exe to your Windows. IF MSConfig.exe is already there and you still can’t launch MSCONFIG from Run command, then the reference to the path within the registry may be wrong. Check this location in the registry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\MSCONFIG.EXE

In the right pane, next to Default, it should show:

C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe

How to remove: Windows Script Host Settings Window pop up's after restart of computer.

1.) In run type regedit
2.) Navigate to Hkey_local_machine \software \microsoft \windowsNT \currentversion \winlogon
3.) Here there is a userinit registry double click on that
4.) In the Value data field there will b something like C:\WINDOWS\system32\userinit.exe, C:\WINDOWS\system32\wscript.exe
5.) Delete the C:\WINDOWS\system32\wscript.exe part so that the field only has C:\WINDOWS\system32\userinit.exe,
6.) Click ok and close the registry editor and then restart windows

"ipconfig is not recognized as an internal or external command" or "sfc /scannow is not recognized as an internal or external command"

cause ::

ipconfig.exe should be residing in C:\WINDOWS\SYSTEM32 folder

Either the file doesn't exist or it's not in the required path i.e.there's may be a copy of ipconfig.exe sitting in the dllcache folder, if the original got deleted, in C:\WINDOWS\SYSTEM32\DLLCACHE

Solution ::

go to: Computer -> Properties -> Advanced -> Environment variables and replacing the PATH command (that somehow had been replaced) with C:\Windows;C:\Windows\System32

or

%SystemRoot%\\system32;%SystemRoot%;%SystemRoot%\\System32\\dllcache

This basically tells your PC to look in the Windows system32 folder for the file first

"The Windows Installer Service Could Not Be Accessed"

Description:

The Windows Installer Service that is included with Windows is used to install the Isabel Security Components. If this service is not working correctly, the installation of the Isabel Security Components will fail.

Cause:

This issue may occur when:

• The Windows Installer Service that is included with Windows XP is unregistered or damaged.

Error messages:

The Windows Installer Service Could Not Be Accessed

Resolution :

Method 1:

To resolve this issue, follow these steps:

1. Log on to your computer as an administrator.
2. Click Start, and then click Run.
3. In the Open box, type cmd, and then click OK.
4. At the command prompt, type msiexec.exe /unregister, and then press ENTER.
5. Type msiexec /regserver, and then press ENTER.

Verify that the SYSTEM account has full control access permissions to the HKEY_CLASSES_ROOT hive in the Windows registry. In some cases, you may also have to add Administrator accounts.
  
To do so:

Note - This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756  (http://support.microsoft.com/kb/322756/ ) How to back up and restore the registry in Windows

a.       Click Start, click Run, type regedit in the Open box, and then click OK.

b.      Click the following registry hive:

HKEY_CLASSES_ROOT

c.       On the Edit menu, click Permissions.

d.      If SYSTEM is not listed in the Group or user names list, click Add, make sure that the local computer name appears in the From this location box, type system in the Enter the object names to select box, click Check Names, and then click OK.

e.       Click SYSTEM in the Group or user names list, and then select the Full Control check box under Allow in the Permissions for SYSTEM box.

f.       Click Apply, click OK, and then quit Registry Editor.

                        Restart the computer. If the problem is not resolved, repair Windows XP. 

Method 2 (if above doesn't work):

1. Under Control Panel ->  Administrative Tools -> Services
2. Right click on the Remote Procedure Call (RPC) Service
3. Select Log In Tab
4. Select Log As "Local System account" and tick "Allow service to interact with desktop" 
5. Reboot.

After reboot installer service should work normally.

Method 3 via registry edit:

1. Download msiserver.zip and save it to Desktop.
http://www.winhelponline.com/blog/wp-content/uploads/msiserv­er.zip
2. Unzip the file and extract msiserver.reg to the Desktop.
3. Right-click msiserver.reg and choose Merge.
4. Click Yes when asked for confirmation.
5. Restart Windows.

Method 4:

 1.  Open Run, and type in services.msc then press Enter. Alternatively, go to Control Panel -> Administrator Tools -> Services.
 2.  Locate Windows Installer in the all install services listing.
 3.  Verify that the Status is Started. If the Status column is blank, right click on Windows Installer and select Start.
 4.  If you get error trying to force start the Windows Installer service, try to change the Startup Type to Automatic (default is Manual), and then restart the computer.

Final Notes:


if get the error message like:

Could not start the windows installer service on local computer
Error 3 : the system cannot find the path specified
 
You will not be able to start the Windows Installer service if "msiexec" exists twice in your C:\Windows\System32 folder (one with .exe extension and one with no extension). Be sure it only exists as "msiexec.exe".