Use C to modify the registry, add user information and delete user information.

For this specific API problem, check MSDN.

I suggest you take a look at the book Shouchi.

Advanced Programming C Programming for Windows Apps

There is a section (operation registry) in it, which is quite detailed.

360 and so on have the function of regular clearing, I don't know if you have turned on these things. There's nothing you can do about it, it's too much to do.

It is recommended that you try it with the Rubik's Cube Optimizer. The ability to manage the registry is still very powerful. It's much more stable than the others, and it's officially certified by Microsoft.

win10 system,Successfully written to the registry,But it was deleted instantly,The problem was solved after exiting Lenovo Manager,So it is suspected that Lenovo Computer Manager deleted the written registry information; In the same way, you can turn off antivirus protection software such as 360.

Registry information cannot be deleted by the general program.

First of all, the database must have an account and password

, and then click dao to confirm the registration with this simple SQL statement insert into the table name username, password values('"+"',"+text,"');

Connect to the database with an object, then open the database, define an SQL statement connection parameter, use the sqlcommand object to execute the SQL statement, and determine the execution result, if it is greater than 0, the table is added successfully, if it is less than 0indicates that the addition failed

Published software products need to be run as administrators and elevated privileges in order to operate the registry.

using ;

registrykey key = ;

registrykey software = "software\\test",true);The item must already exist.

For more information, see

Write the registry can be written directly at the time of installation. Get the words. It shouldn't be that hard. I haven't done this. But I think there should be a ** about this on the Internet, right??You can take a look.

In your case, it's just administor username that has been changed. At the beginning of the setup control panel, you can change it in the user account.

Start Run and type regedit

Enter in turn. hkey_local_machine\software\microsoft\windows nt\currentversion\winlogon\specialaccounts\userlist

Look for an administrator on the right, and if so, double-click and change the key from 0 to 1