Advice 1: How to remove key of Kaspersky antivirus

One of the most popular anti-spyware and antitrojans programs – Kaspersky anti-virus (KAV) and Kaspersky Internet Security (KIS) – can work fully only if you have the license key. To set a new key, you must first remove the old one.
How to remove key of Kaspersky antivirus
Instruction
1
Updating databases containing information about viruses and vulnerabilities Microsoft Windows and separate software, it is also possible only in the presence of an installed key. The keys listed company Kaspersky blacklist and the keys, the validity of which has expired, shall be removed and replaced with a new one.
2
Delete key of Kaspersky antivirus it is possible to make the following way - using the shell program. This option is relevant for the license keys that are purchased together with the official disk for the antivirus program. Move the mouse cursor on the icon of antivirus utility running in the system tray at the clock and click with the left mouse button two times. In the on-screen window, find the link "License" and click on it. In the new opened window you'll see options, one of which removes invalid or expired key and another installs a new one.
3
If you download keys from the Internet, use the same key again, or a trial key, deleting a key from Kaspersky anti-virus you need to make in another way. Utility records all changes in the registry operating system. Therefore, when attempting to use a key or re-key, black-listed companies, the program will report an error referring to the registry entry made earlier.
4
In this case, you must first remove all the entries of the antivirus from the registry. Help make this program Kaspersky Cleaner or any other cleaner, able to remove the trial and used the keys from the Windows registry. Download such programs from the Internet is easy - just find them through any search engine e.g. Google or Yandex.
5
By installing Kaspersky Cleaner or other similar program, open the main application window of Kaspersky anti-virus and select the menu item "Settings". Under "Options" untick and disable self-defense of the antivirus, then confirm the change in security settings and click OK to disable the antivirus. After that use software to remove keys from the registry. Restart the computer, after restart the antivirus installed a new key again.

Advice 2: How to remove registry keys?

Setting of Windows is mainly carried out through the user interface. Despite the convenience of its usage, its functions are limited, not all the operating system settings you can configure with it. The possibility of changing OS settings by editing the registry are much more broad.
How to remove registry keys?
You will need
  • – a PC running Windows;
  • – third-party programs to edit the registry.
Instruction
1
Edit the registry by using the program regedit.exe (located in the folder /windows/) or regedit32.exe (located in the folder /windows/system32/). For convenience, create a shortcut of this program on the Desktop – clicking on it right mouse button and selecting the option "desktop (create shortcut)". Regedit.exe you can also start typing regedit into the "Run" in "start menu".
2
Run the program. In the opened window, in the menu "edit" select "Find" or press Ctrl+F. In the form that appears, enter the name of the key you want to delete and hit "Find next". Depending on the search parameters that are specified in this window, the program searches for the desired key.
3
Scroll to a found key. In the menu "File" select "Export". In the dialog that appears, select the file name (as an option – the name of the key that you are removing), and then specify the folder in which to save the file with a. reg extension. Click "Save". Saving this file will allow you to restore the deleted key, if its removal will adversely affect the operating system. To do this, just do double click on the saved file and confirm with OK. The result of the remote entry in the registry will be restored.
4
Select key in menu "edit" select "Delete" and confirm your choice by pressing OK. Or click on the key, right-click and select the context menu option "Remove". Close the editor and restart the computer. Latest is not always required, it depends of the parameter to remove, but to secure still does not hurt to do it.
5
You need to keep in mind that in the registry can have multiple identical keys that are stored in different sections: HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE and others. In some cases, enough to make a change in HKEY_CURRENT_USER, so it was automatically made in the other sections. However, this is not always the case, for the full warranty you need to remove keys in all sections.
6
Editing the registry can be done with the help of numerous third-party programs. The majority of them before making the corrections save the registry settings that eliminates the need to export (save) the file to the remote key. In addition, the program conducted a clean registry and search for keys, taking them all at once, whereas when you search in regedit.exe account after finding a single key each time to confirm the search for the next.
7
Sometimes the system refuses to delete the key, to indicate that you do not have permission. In this case, highlight the subkey, which is the key and select "permission" in the menu "edit". In the window that appears click on the "Advanced" tab and set yourself full control on the editing of this subsection.
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