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Windows 7: AtBroker.exe, Explorer.exe failed to start

31 May 2011   #1

Windows 7 Home Premium x64, Ubuntu 13.04 x64
AtBroker.exe, Explorer.exe failed to start

When I boot up my laptop, I get a place to type in my password. Then I get a black screen with only a pointer, and two error messages.

Atbroker.exe failed to start and Explorer.exe failed to start

I do Control+Alt+Delete and click Task Manager, and get another error:

Task manager failed to start.

This also happenes in safe mode. I need to replace Shell32.dll, but I can't open C:\Windows\System32 to open it.

Please help!!!!

My System SpecsSystem Spec
31 May 2011   #2

XP / Win7 x64 Pro

The problem seems to be with CA Antivirus falsely quarantining shell32.dll. If you can't seem to boot into either safe mode or regular mode, there are a few other options.

1) Do a Repair Install with the system disc (probably the easiest solution)
2) Use the system disc to boot to a command prompt, run SFC /scannow, and hope it finds and fixes shell32.dll
3) Remove your hard drive, mount it to another machine, so you can replace shell32.dll
4) Use a linux boot disc to access the files and replace shell32.dll
My System SpecsSystem Spec
31 May 2011   #3

Windows 7 Home Premium x64, Ubuntu 13.04 x64

1) I only have the OEM install disc.
2) I don't have CA antivirus, but I will try that anyway.
3) I can only replace Shell32.dll in the system32 folder, not sysWOW64 because of permissons (already tried).
4) More detail, please.

I have Kaspersky PURE installed. I opened Safe Mode with command promt and typed "control" to open control panel. "control could not start" was in a dialog box.

Thanks, I will post if this works. I can post from my iPad, it won't even open iexplore.exe on my laptop.
My System SpecsSystem Spec

31 May 2011   #4

Windows 7 Home Premium x64, Ubuntu 13.04 x64

I did the SFC /scannow and it said it corrected corrupted files. I did CTRL+ALT+DELETE and rebooted. It works! thanks so much!
My System SpecsSystem Spec
31 May 2011   #5

XP / Win7 x64 Pro

Sweet! Congrats.
My System SpecsSystem Spec
05 Nov 2012   #6

Windows U7 Ultimate x64

I was having the Black Screen of Death with mouser pointer and realised through Event Viwer (eventvwr.msc) that the explorer.exe crash was associated to the propsys.dll located in windows\system32 folder.

So, I managed to emulate a mini WinXP via Hiren's Boot, loaded a "health" propsys.dll from my other Windows 7 system and overwrote the corrupted one. Problem solved to me!
My System SpecsSystem Spec

 AtBroker.exe, Explorer.exe failed to start

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