Techbulb

If you are getting a error message like

“LSA Shell (Export Version) has encountered a problem and needs to close. We have created an error report that you can send to help us improve LSA (Export Version).”

Then most probably you are infected with a virus known as Sasser virus.

To fix this problem Download and install the security patch from http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx

Also, update your virus definitions and scan the entire hard drive to locate and clean infected files. To stop a PC from shutting down in Windows XP, when you get the 60-second countdown, go to Start > Run, type ‘shutdown -a’ and press [Enter]. You’ll now stay connected to the Internet and download the patches.

It is highly recommended to keep an updated anti virus in your system as a protection from these types of virus infections

Sometimes windows is unable to start because the registry gets corrupted and you get an message like

Windows XP could not start because the following file is missing or corrupt:\WINDOWS\SYSTEM32\CONFIG\SYSTEM

Or something similar .to fix this either you can reinstall windows OR recover the registry

To start up your machine without reinstalling, you need to execute some commands at the recovery console. To get to the recovery console, boot with the help of a bootable Windows XP CD, and press [R] when prompted to enter the recovery console. Select your Windows folder, and enter the administrator password. Once at the console prompt, the first thing to do is back up the existing file; you do so by executing the following commands at the prompt:

md tmp
copy c:\windows\system32\config\system
c:\windows\tmp\system.bak

Now you need to replace these files with the proper, non-corrupt files,which are in the repair folder in the Windows directory:

copy c:\windows\repair\system c:\windows\system32\config\system

Now you can boot into Windows XP,but, as this file was backed up when Windows was originally installed, any changes and settings after that are lost.If System Restore is enabled on your system, you can get back to the last restore point. To do this, boot into Safe Mode with administrator privileges, go to the drive
where Windows XP is installed, and look for the”System Volume Information” folder. Look for a snapshot folder for example, C:\System Volume Information\restore{C0B08955-BE89-4849-ABC0-715FCDE6CE4A}\RP3. Copy the _REGISTRY_MACHINE_SYSTEM file to the folder by typing in copy _REGISTRY_MACHINE_SYSTEM c:\windows\tmp\_REGISTRY_MACHINE_SYSTEM.Go to the recovery console again,using the Windows XP boot disk,and copy this file over the existing one by typing

copy c:\windows\tmp\_registry_machine_system c:\windows\system32\config\system

Restart Windows normally, start System Restore and restore your machine to any point you wish.

MS PAINT caused an invalid page fault in module MFC42.DLL…bla bla bla

This is one of the most common MS paint error most of the people receive.So here’s the key to solve the problem

ActuallyThis error message is caused by corrupted registry entries for MS Paint. To resolve this problem, you have to first uninstall Paint, then delete the registry keys and finally reinstall Paint.
To do this, go to Start > Settings > Control Panel, and then double-click on ‘Add/Remove Programs’. Click on the Windows Setup tab, click on Accessories,and then click on Details. Uncheck the Paint checkbox, and click OK twice.
Now, go to Start > Run, type ‘regedit’ and press [Enter].Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Applets\Paint, and delete all the keys there.

To reinstall Paint, go back to the Windows Setup tab, and check the Paint option we asked you to uncheck in the first step, and click OK twice.

I will recommend you to keep a backup of your registry before performing these steps

The BIOS doesn’t seem to detect your floppy drive. Check the CMOS settings and see if the floppy drive is visible. Ensure that the CMOS is set to ‘Halt on all errors’ and also check that the BIOS ‘Report the floppy
drive to the OS’ setting is enabled.Another reason could be drive letter conflicts caused by software such as RAM disk.TweakUI from PowerToys, which is available from the Microsoft Web site, can also cause drive letters to be hidden in Windows Explorer and My Computer. If you have it installed, go to Start > Settings > Control Panel and doubleclick on TweakUI. In the My Computer tab, select the checkboxes of the drives that are shown as hidden. Click Close, and restart your computer.