How does CurrentControlSet differ from ControlSet001 and ControlSet002?

Yes, you only need to update the CurrentControlSet key… ControlSet001 and ControlSet002 are alternating backups of CurrentControlSet, you don’t need to update them. Edit: As K noted, CurrentControlSet is an alternating symbolic link to either ControlSet001 or ControlSet002. The other key is kept as a backup for the Load Last Known Good Configuration boot option. … Read more

Reading the registry and Wow6432Node key

On an x64 machine, here is an example of how to access the 32-bit view of the registry: using (var view32 = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry32)) { using (var clsid32 = view32.OpenSubKey(@”Software\Classes\CLSID\”, false)) { // actually accessing Wow6432Node } } … as compared to… using (var view64 = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64)) { using (var clsid64 = view64.OpenSubKey(@”Software\Classes\CLSID\”, true)) … Read more

Detecting installed programs via registry

On 64-bit systems the x64 key is: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall Most programs are listed there. Look at the keys: DisplayName DisplayVersion Note that the last is not always set! On 64-bit systems the x86 key (usually with more entries) is: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall

What registry access can you get without Administrator privileges?

In general, a non-administrator user has this access to the registry: Read/Write to: HKEY_CURRENT_USER Read Only: HKEY_LOCAL_MACHINE HKEY_CLASSES_ROOT (which is just a link to HKEY_LOCAL_MACHINE\Software\Classes) It is possible to change some of these permissions on a key-by-key basis, but it’s extremely rare. You should not have to worry about that. For your purposes, your application … Read more

How can I get the value of a registry key from within a batch script?

This works for me: @echo OFF setlocal ENABLEEXTENSIONS set KEY_NAME=”HKEY_CURRENT_USER\Software\Microsoft\Command Processor” set VALUE_NAME=DefaultColor FOR /F “usebackq skip=4 tokens=1-3” %%A IN (`REG QUERY %KEY_NAME% /v %VALUE_NAME% 2^>nul`) DO ( set ValueName=%%A set ValueType=%%B set ValueValue=%%C ) if defined ValueName ( @echo Value Name = %ValueName% @echo Value Type = %ValueType% @echo Value Value = %ValueValue% ) … Read more

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