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Changed Reg permissions, how do i fix it

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#1 916chad


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Posted 22 December 2008 - 06:00 PM

I have a compaq presario a900 laptop with windows home premium. I have an 80gig zune that i was trying to load some videos on, but they weren't showing up in my library. I decided to just add them in windows explorer but had to change a few reg values first, which worked on my pc. After i did that it showed up as a hard drive, but I was unable to add files to it, and I would just get an error saying I didnt have permission to add files. I, mistakingly, decided to mess around more and change permissions in the registry editor. I got frustrated and changed it all to give everything full control. Now I cant even get my zune to show up under the microsoft zune software. And I have a feeling a bunch of other things are probably messed up too. What should I do to fix everything? Is there some way to restore defaults, or revert back to the old settings. I forgot to save anything or set set a restore point.

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#2 xXAlphaXx


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Posted 23 December 2008 - 12:05 AM

Well, you should by default have System restore enabled, which should automatically create restore points in critical times such as entering the registry etc.

Keep your fingers crossed and take a look to see if it created one anyway.
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#3 usasma


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Posted 23 December 2008 - 07:03 AM

If there's a restore point on your system, Startup Repair should allow you to access it.
Here's out tutorial for it: http://www.bleepingcomputer.com/tutorials/repair-windows-with-windows-startup-repair/
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#4 I_am_CanadianEh?


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Posted 23 December 2008 - 08:46 AM

Give this a try.

1. Make a backup of your registry using ERUNT
2. Download and install subinacl.exe.
3. Copy the text below in the quote box into a NOTEPAD file and name it reset.cmd. Make sure you save it as type "All files" and not a .txt file. Save the file to your desktop.

cd /d “%ProgramFiles%\Windows Resource Kits\Tools”
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f
subinacl /subdirectories %SystemDrive% /grant=administrators=f /grant=system=f
subinacl /subdirectories %windir%\*.* /grant=administrators=f /grant=system=f
secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose

4. Right click the file and select: "Run as Administrator". It may take a long time. Don't worry if you see some errors within the program...this is nothing to worry about. When the script finishes, it will close automatically.

Note: If you have a security program that alerts you about a possible malicious script...please allow the script to run.

5. Reboot your computer and see if your issues were resolved.


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