How to fix Windows crashes
In this guide, we’ll cover a few possible reasons that might cause a regedit change for all users, and then show a few possible ways to fix it.
When editing the registry, we will show all users, whether the user is logged in or not. Is this a continuation of my last post on the blog website about changing another user’s master post? .
For a quick refresher, we learned how to convert a user’s registry (HKEY_CURRENT USER or possibly HKEY_USERS) without having that user registered on the computer. We had to upload their NTUSER.File data separately to the computer’s HKEY_USERS registry branch.
Now we’ll add some fun by learning how to set this up for all users, not just specific users.
To Change The Registry For All Users
Does HKEY_CURRENT_USER apply to all users?
The HKEY_LOCAL_MACHINESoftwareClasses key contains default settings that experts believe can apply to all users on the local computer. The HKEY_CURRENT_USERSoftwareClasses secret contains options that overrideThese are the default settings and only apply to all interactive users.
Before we can sometimes modify the registry for all operators, we need to be able to successfully extract all ntuser.dat files so that in many cases we can load them, as we did in the last blog post.
I know what you’re thinking. Thinking that you are is not so difficult! We know that the ntuser.dat file is locatedin the C:Users
This is only set when no one is logged in. We need to take into account all currently registered users. All currently registered users already have ntuser.dat files loaded into this registry. This includes users who have forgotten exactly who should opt-out. Even if your own session is disabled and someone is also logged in, the entry is still loaded into the registry.
Here’s a good example. I am currently logged into my test computer. There is also usually a record of the user logged out when you forgot to log out:
Where are all users in registry?
Open the Windows Registry Editor.Expand HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionProfileList.Select each folder individually, and therefore look at the ProfileImagePath key, which identifies the user profile associated with the selected folder:
When I watch Reg load ntuser.dat, I get an error saying that ntuser.dat is currently being used by someone else.
We need to find and compare all the people on the computer using all currently registered additional user identifiers (SIDs).
Find All Users And Their IDs
To nowTwt for us, there is an attractive place in the registry where users on the computer and their SIDs are stored.
This location contains an up-to-date list of all SIDs that affect the machine and some other properties. We are interested in SIDs starting with S-1-5-21. Note that you can see both SIDs in the previous screenshot:
This allows some of us to use PowerShell to determine regular moves and some computed properties based on interesting information. To do this, we use the Get-ItemProperty cmdlet using registry data.
$PatternSID means 'S-1-5-21-d+-d+-d+-d+$' Get-ItemProperty 'HKLM:SOFTWAREMicrosoftWindows | ntcurrentversionprofilelist*' Where-Object $_.PSChildName -match $PatternSID | select @name="SID";expression=$_.PSChildName, @name="UserHive";expression="$($_.ProfileImagePath)ntuser.dat", @name="username";expression=$_.ProfileImagePath - replace '^(.*[/])', ''
How do I set default registry?
The only way to completely reset the registry As a result, if you want to reset the Windows registry, the only real way is to reset your Windows PC. Resetting Windows reinstalls the operating system, which usually resets the registry.
We now have a list of their associated SIDs in addition to their usernames.
Get User SID In HKEY_USERS
We then need to find the best SIDs with the SIDs associated with users who are currently registered and whose registry is populated with HKEY_USERS (see Get-ChildItem):
Combine Into e
How do I get full permissions in Regedit?
Get full control permissions for a registry key In the Authorization Entry dialog box, click the Select Principal link. Then enter your username in the “Enter the subject name you want” field and click “Verify the names you entered earlier.” Then click OK. Check the “Full Control with Basic Permissions” box and click OK.
Now we just need you to be able to compare the two lists of SIDs and we can tweak the registry however we want. I’ve put it all together into a template that someone would normally use to read or even edit the entry of each carrier on a machine. For example, it’s best to download each registry (if it’s not loaded anymore) and try to read the uninstall key from HKCU:SoftwareMicrosoftWindowsCurrentVersionUninstall*
This shows which users are downloading the software for each user, and usually the name of the software:
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# Regular expression pattern for SID$ModelSID = 'S-1-5-21-d+-d+-d+-d+$' # Get username, SID and location from ntuser.dat for all users$ProfileList = gp 'HKLM:SOFTWAREMicrosoftWindows NTCurrentVersionProfileList*' Where-Object | $_.PSChildName -Match $PatternSID | Select @name="SID";expression=$_.PSChildName, @name="UserHive";expression="$($_.ProfileImagePath)ntuser.dat", @name="username";expression=$_.ProfileImagePath -replace '^(.*[/])', '' # Get all last found users SID HKEY_USERS (ntuder.dat files that are usually loaded)$LoadedHives = gci | Registry::hkey_users? ? ? $_.PSChildname $PatternSID matches | Select @name="SID";expression=$_.PSChildName # V Do not receive users who are actually currently logged in$UnloadedHives = comparison object $ProfileList.SID $LoadedHives.SID | Select @name="SID";expression=$_.InputObject, UserHive, username # View each profile on a machine partForeach($element in For each write output Registry Get-ItemProperty::HKEY_USERS$($Item.SID)SoftwareWow6432NodeMicrosoftWindowsCurrentVersionUninstall*
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