c:\\Windows\System32\wuapp.exe is not a valid Win32 application.

J

joeschmo

Member
i keep getting this message when trying to start windows update from my start menu.

c:\\Windows\System32\wuapp.exe is not a valid Win32 application.

any help on this?
 

My Computer

System One

  • Manufacturer/Model
    Dell Inc/XPS 630i
    CPU
    Intel Core 2 Quad CPU
    Memory
    RAM = 3.00GB
    Graphics card(s)
    ATI Radeon HD 4800 series
Hello joeschmo and welcome to the forums :party:

SFC Scan


  1. Open your start menu and in the search box, type Command Prompt
  2. When you see Command Prompt on the list, right-click on it and select Run as administrator
  3. When command prompt opens, copy and paste the following commands into it, press enter after each

    sfc /scannow

    Wait for this to finish before you continue

    copy %windir%\logs\cbs\cbs.log %userprofile%\Desktop\cbs.txt

  4. This will create a file, cbs.txt on your Desktop. Please attach this to your next post.



Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD Seagate Barracuda 2TB 7200rpm 2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
Thanks Tom 982.
When I saw Command Prompt I right clicked and chose "Run as Administrator" and then received the following:

"Problem with Shortcut: The item 'cmd.exe' that this shortcut refers to has been changed or moved, so this shortcut will no longer work properly. Do you want to delete this shortcut"

So I used common sense and just typed in cmd.exe - that worked.

I tried twice to attach the cbs file, but I receive the following: "Your submission could not be processed because a security token was missing."

I suppose I could copy and paste the file but it is huge = 20.6MB
 

My Computer

System One

  • Manufacturer/Model
    Dell Inc/XPS 630i
    CPU
    Intel Core 2 Quad CPU
    Memory
    RAM = 3.00GB
    Graphics card(s)
    ATI Radeon HD 4800 series

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD Seagate Barracuda 2TB 7200rpm 2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
i tried to upload from URL but I am told "invalid file". I must be doing something wrong but I'm not sure what.
 

My Computer

System One

  • Manufacturer/Model
    Dell Inc/XPS 630i
    CPU
    Intel Core 2 Quad CPU
    Memory
    RAM = 3.00GB
    Graphics card(s)
    ATI Radeon HD 4800 series
Excellent :) Thanks. Now for a batch file:

Batch File


  1. Click the Start button
    StartButton_16x16.gif
    , click All Programs, click Accessories and then click Notepad
  2. Copy (Ctrl+C) all of the text in the following box and paste (Ctrl+V) it into Notepad

    Code: 
    taskkill /f /im wuapp.exe

if not exist %SYSTEMDRIVE%\tom982 mkdir %SYSTEMDRIVE%\tom982

icacls C:\Windows\system32\wuapp.exe /save %SYSTEMDRIVE%\tom982\wuapp

takeown /f C:\Windows\system32\wuapp.exe

icacls C:\Windows\system32\wuapp.exe /grant administrators:F

ren C:\Windows\system32\wuapp.exe *.bak

copy C:\Windows\WinSxS\amd64_microsoft-windows-w..pdateclient-activex_31bf3856ad364e35_7.6.7600.256_none_66110e7f0b087d75\wuapp.exe    C:\Windows\system32\wuapp.exe

icacls C:\Windows\system32 /restore %SYSTEMDRIVE%\tom982\wuapp

sfc /scannow

copy %SYSTEMROOT%\Logs\CBS\CBS.log %USERPROFILE%\Desktop\CBS.txt

start notepad.exe %USERPROFILE%\Desktop\CBS.txt
  3. Go to File > Save As... and save it to your Desktop named fix.bat. Make sure you change the Save as type to All Files (*.*)
  4. Locate fix.bat on your Desktop and double-click on it


Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD Seagate Barracuda 2TB 7200rpm 2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
what do you think i should try next
 

My Computer

System One

  • Manufacturer/Model
    Dell Inc/XPS 630i
    CPU
    Intel Core 2 Quad CPU
    Memory
    RAM = 3.00GB
    Graphics card(s)
    ATI Radeon HD 4800 series
Hi joeschmo,

Sorry for the late reply, I was at Creamfields last weekend. Let's try this:

MGADiag

I would like you to make a MGADiag report for us please.

  1. Download MGADiag (by Microsoft) from the link found below:

    http://go.microsoft.com/fwlink/?linkid=52012

  2. Run the tool by double clicking on the file. Press Continue when prompted
  3. When it has finished, press Copy then paste this into your next post

Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD Seagate Barracuda 2TB 7200rpm 2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
###
 
Last edited:

My Computer

System One

  • Manufacturer/Model
    Dell Inc/XPS 630i
    CPU
    Intel Core 2 Quad CPU
    Memory
    RAM = 3.00GB
    Graphics card(s)
    ATI Radeon HD 4800 series
Sorry for the late reply! I thought I had replied to this. Let's try running that batch file again, but this time as an administrator:

Batch File


  1. Click the Start button
    StartButton_16x16.gif
    , click All Programs, click Accessories and then click Notepad
  2. Copy (Ctrl+C) all of the text in the following box and paste (Ctrl+V) it into Notepad

    Code: 
    taskkill /f /im wuapp.exe

if not exist %SYSTEMDRIVE%\tom982 mkdir %SYSTEMDRIVE%\tom982

icacls C:\Windows\system32\wuapp.exe /save %SYSTEMDRIVE%\tom982\wuapp

takeown /f C:\Windows\system32\wuapp.exe

icacls C:\Windows\system32\wuapp.exe /grant administrators:F

ren C:\Windows\system32\wuapp.exe *.bak

copy C:\Windows\WinSxS\amd64_microsoft-windows-w..pdateclient-activex_31bf3856ad364e35_7.6.7600.256_none_66110e7f0b087d75\wuapp.exe    C:\Windows\system32\wuapp.exe

icacls C:\Windows\system32 /restore %SYSTEMDRIVE%\tom982\wuapp

sfc /scannow

copy %SYSTEMROOT%\Logs\CBS\CBS.log %USERPROFILE%\Desktop\CBS.txt

start notepad.exe %USERPROFILE%\Desktop\CBS.txt

  3. Go to File > Save As... and save it to your Desktop named fix.bat. Make sure you change the Save as type to All Files (*.*)
  4. Locate fix.bat on your Desktop and right-click on it, click Run as administrator

This will create a file on your Desktop, please upload this to Mediafire like before :)

Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD Seagate Barracuda 2TB 7200rpm 2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
###
 
Last edited:

My Computer

System One

  • Manufacturer/Model
    Dell Inc/XPS 630i
    CPU
    Intel Core 2 Quad CPU
    Memory
    RAM = 3.00GB
    Graphics card(s)
    ATI Radeon HD 4800 series
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