Cant access device manager

You can't access device manager as in you can't navigate to its location? or you are restricted from starting it?

If its the latter, did you have access to it previously? Are you the Administrator of the system? If you answer YES to any of these, [s]then I have attached to this post, a registry file that should restore access to the device manager. Just download and click on it. You would be prompted to added the entry to registry. Accept it.[/s]
Sorry, file types for upload have been restricted now. So, you have to copy the codes in below into a text editor(Notepad) and choosing "Save As" option =  "All Files". Then enter the name "RestoreDevMgr.reg".  This is necessary so that the save action creates a registry file and not a text file.
With this done, click on the saved file and accept to add to registry when prompted.

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\CLSID\{74246bfc-4c96-11d0-abef-0020af6b0b7a}]
@="Device Manager"

[HKEY_CLASSES_ROOT\CLSID\{74246bfc-4c96-11d0-abef-0020af6b0b7a}\InprocServer32]
@="C:\\WINDOWS\\System32\\devmgr.dll"
"ThreadingModel"="Apartment"

[HKEY_CLASSES_ROOT\CLSID\{74246bfc-4c96-11d0-abef-0020af6b0b7a}\ProgId]
@="DevMgrSnapin.DevMgrSnapin.1"

[HKEY_CLASSES_ROOT\CLSID\{74246bfc-4c96-11d0-abef-0020af6b0b7a}\VersionIndependentProgId]
@="DevMgrSnapin.DevMgrSnapin.1"

Cheers!

oga maleeq , na u biko oooo , na programmer u be?

burla++:

oga maleeq , na u biko oooo , na programmer u be?

I dey try for that area small.

I'm in a mix of system/network administration and programming.

Hi Maleeq,
Thanks for this, i just made use of it to solve similar problem 4 one of ma clients computer. Am also into IT, a netwrk admin/tech support engr.

@visitor30
No shaking! Glad it helped you out.