Drive letters not assigning to DVDROM or external drives on notebook

[Kaktussoft]

View attachment 272267
View attachment 272268

Sure you did #17 as explained in post?
normalboot.reg and safeboot.reg are identical!! (Both fine)

 

[hillsdave]

Clean startup problem still exists

 

[hillsdave]

sorry my bad ,here is the correct normalboot.reg

View attachment normalboot.reg

 

[Kaktussoft]

command prompt:

net  use

anything listed? If not:

Create a new user account (as a test). Logon under that account. Same problem?

 

[hillsdave]

nothing listed. I've already tried creating another user account. same problem

 

[Kaktussoft]

nothing listed. I've already tried creating another user account. same problem

Detach the usb stick(or usb drive)
Save attachment somewhere. Double click the saved file. Imports succesfully?
Attach usb device again. Does it have a drive a letter now? Can you change it?

 

[Kaktussoft]

In http://www.sevenforums.com/tutorials/783-elevated-command-prompt.html

reg  query  HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\explorer

Post output

 

[hillsdave]

nothing listed. I've already tried creating another user account. same problem

Detach the usb stick(or usb drive)
Save attachment somewhere. Double click the saved file. Imports succesfully?
Attach usb device again. Does it have a drive a letter now? Can you change it?

Imported successfully. No & no

 

[Kaktussoft]

Run REGEDIT and browse to HKLM\SYSTEM\MountedDevices
In the right pane you see a this (and much more):

#{7e130408-d361-11e2-8060-0025d3b22ded}
#{7e130409-d361-11e2-8060-0025d3b22ded}

Click on the first and press DEL-button. Do the same for the second value. Press F5 to refresh. Does right pane change?
Now try to assign a drive letter.

Switch back to regedit and press F5 (refresh). Does right pane contents change?
detach usb drive. attach us drive. Switch to regedit and press F5. right pane does change?

 

[Faladu]

Hi dave (OP),

Did those drives EVER work properly with that OS as installed now?

What was done to that system, just before it stopped working properly, best you can recall....?

Thought about it longer, my suspect is:

SOUTHBRIDGE issue (chipset), just the driver hopefully.

Here's your spot for it's downloads:

http://bg.asus.com/Notebooks/Versatile_Performance/K52JC/#download

Maybe your INF cache (drivers) is hosed also, I noticed this thread on the subject:

http://www.sevenforums.com/hardware...-usb-device-divers-not-working-my-laptop.html

 

[jumanji]

Hi dave (OP),

Did those drives EVER work properly with that OS as installed now?

What was done to that system, just before it stopped working properly, best you can recall....?

Thought about it longer, my suspect is:

SOUTHBRIDGE issue (chipset), just the driver hopefully.

Here's your spot for it's downloads:

ASUS - Notebooks- K52JC

Maybe your INF cache (drivers) is hosed also, I noticed this thread on the subject:

http://www.sevenforums.com/hardware...-usb-device-divers-not-working-my-laptop.html

A good suggestion to reinstall the chipset drivers.

And a good find on search. ( Even I have difficulties in fnding the posts I had made. May be I am getting jaded and that is where younger members like Faluda have an edge. I appreciate it.)

The options available to the OP now are - after trying out Kaktussoft's suggestions of deleting mounted devices from the registry which I think is the same as removing all non-present devices which the OP has already done as per my post #4 ( I may need to be corrected if I am wrong)-

1. to reinstall chipset drivers

2. try a system restore if a point is available before this event occurred

and

3. Follow the procedures outlined in the thread Faluda has suggested viz.,1. rebuilding the infcache.1 and 2. replacing the drivers which Windows installs with fresh copies from its repository.

If all these fail to bring cheers, call it a valiant effort and do a repair install.

 

[hillsdave]

Well, turns out that the Windows Event Log service was the culprit. No idea why, but when I disable it, drive letters stick & everything's fine.

 

[Kaktussoft]

Well, turns out that the Windows Event Log service was the culprit. No idea why, but when I disable it, drive letters stick & everything's fine.

Gald you solved it. But now you work witout event logging!
Incredable it solved the problem

 

[bobafetthotmail]

Can you try this program (and re-enable event logging that is useful in case you have any issue)?

 

[jumanji]

My thoughts on disabling event logging: It’s not just some extraneous service that most people don’t use, it’s a required service that Windows expects to be running, and frankly I would be surprised if you don’t get a crash at some point if it is disabled.

The solution would be to find out the real cause and if it could not be found - there are any number of situations where we fail to find the real cause or culprit - do a repair install so that Windows works as it should rather than clipping the wings.

I would suggest that you run sfc scannow and check whether it finds any corrupt file/s and repairs.