Userinit logon application has stopped working error

Hi, I recently bought a HP G62 model with windows 7 professional and an intel i5 processor. I uninstalled a few programs from my laptop and since then I have been getting a "userinit logon application has stopped working" error every time I start my computer.  It displays the following details:

Problem signature:
  Problem Event Name: APPCRASH
  Application Name: userinit.exe
  Application Version: 6.1.7601.17514
  Application Timestamp: 4ce79438
  Fault Module Name: protector.dll_unloaded
  Fault Module Version:
  Fault Module Timestamp: 4f2acbcc
  Exception Code: c0000005
  Exception Offset: 74eecbcb
  OS Version: 6.1.7601.
  Locale ID: 1033
  Additional Information 1: 0a9e
  Additional Information 2: 0a9e372d3b4ad19135b953a78882e7
  Additional Information 3: 0a9e
  Additional Information 4: 0a9e372d3b4ad19135b953a78882e7

There are no other problems with the functioning of the laptop except that I have to forcibly it shut down instead of the normal automatic process. Can you help?

Question Info

Last updated May 6, 2019 Views 14,764 Applies to:
This issue occurs if the Userinit key in the Windows registry has been modified. For example, this issue may occur if the Userinit key has a value but no binary data.
Steps I would suggest are:
Boot the computer in safe mode and try making these changes in registry:
Method 1: Boot the computer in safe mode
Method 2: Check the Userinit value and binary data in registry
Important: The instructions below contain 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 please refer the link mentioned below:
How to back up and restore the registry in Windows
a.    Start Registry Editor. To do this, click Start, type regedit in the Start Search box, and then press ENTER.
b.    Click Continue.
c.    Locate and then click the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
d.    In the right pane, right-click Userinit, and then click Modify.
e.    In the Value data box, type hard disk:\Windows\System32\userinit.exe, and then click OK.
Note: The hard disk placeholder refers to the disk on which Windows 7 is installed.
f.     Close Registry Editor.
g.    Restart the computer.
You may also refer the link mentioned below:

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