You can also open it by typing regedit. The actual program is named regedt If you navigate to the System32 directory, you can double click the regedt Be careful not to modify any files in the System32 folder, since they are part of the Windows operating system. Each of the folders in the left sidebar contain different types of registry settings, called "registry keys.
If you want to change what program opens a certain file type, you can edit the registry key for the corresponding file extension. If you edit the registry incorrectly, serious problems might occur that could require a complete reinstall of the operating system and result in data loss. Avoid any edits suggested by unofficial sources. For added protection, before making edits based on officially published Microsoft documentation, be sure to back up the registry.
Then you can restore it if a problem occurs. For more information see How to back up and restore the registry in Windows. In the search box on the taskbar, type regedit , then select Registry Editor Desktop app from the results.
Right-click Start , then select Run. Type regedit in the Open: box, and then select OK. Windows 10 More Need more help? Finding and repairing faulty keys or entries should not be done by inexperienced users, nor should deleting unknown entries. However, anyone who is familiar with the software used and, for example, anyone who has problems with obsolete entries in Windows Registry when reinstalling a program, can after a security back-up remove the relevant key from the database themselves.
Even minor cosmetic adjustments to the desktop interface can be implemented in the shortest possible time risk-free, thanks to the corresponding instructions.
In the search options, you can also specify whether Regedit should perform a complete scan or only search for the desired term only in keys, data, or values. To do so, simply click to check or uncheck the appropriate box. To get a more accurate search result, you can also select the Compare entire character sequence option.
This means that the only results displayed are those whose designation is identical to the search term. If the registry editor finds a hit, it jumps to the appropriate location in the registration database. Regedit will then prompt you to confirm the deletion of the key including any existing subkeys.
If there are several hits for the selected term in Windows Registry, you can jump directly to the next search result by pressing the [F3] key. User tastes vary widely in terms of desktop organization. By default, Windows allows you to adjust the size of the icon and therefore, for example, create more space by using smaller icons — but changing the spacing between icons is not possible through the regular menu.
By default, both entries in newer system versions such as the Windows 10 registry have a value of - The available limit values are as follows:. Windows registry keys contain security information , just like files and folders in the file system. This information determines whether a user only has read-only access to the entries or can also change or delete them. Unless you gain access to the Windows registry as an administrator or have been granted the appropriate access rights, you may not be able to change or delete certain values.
Regedit lets you know with an error message. Even administrators cannot view or edit the entire contents of the registration database. This is because, among other things, all user account password hashes are stored here. The infamous blue screen of death usually shows up without any warning. If Windows can no longer be run as a result of such a problem, then the forced shutdown takes place in the form of a blue screen containing an error message.
This may cause unsaved files and documents to be lost.
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