In Windows 7 there is cases where the desktop shortcut can be lost suddenly, without notice. Apparently, that is responsible for the action it is a System Maintenance feature.

Windows 7
System Maintenance feature that will remove the desktop shortcut that was never used, at least three months. System Maintenance will also remove broken shortcuts more than four. Solutions to the System Maintenance not any erase, you can follow the following:
- Click Start, Control Panel.
- In the Under System and Security, click Find and fix problems.

System and Security
- In the left pane, click Change Settings.

Klik Change Settings
- At Computer Maintenance option, replace the so click Off.

Select Off
Please note, if this option is turned off then Computer Maintenance Other maintenance features, such as checking the clock, disk volume errors, and so also is turned off.
There are several scenarios in which Windows users must use the command line to access the registry, instead of using the facilities of the registry editor as usual. Some of these scenarios can be when attacked by the virus so that access to the registry editor is blocked by the virus.

Run box
“Many roads lead to Rome”. If the registry can not be accessed through Windows then here’s how to access the registry via the command line.
- Open a command line from the Run box by typing the command cmd.
- Write the command reg /?, To display all the options available.

Doing Command
- Now, we will try to delete a registry key. Reg delete command is essentially a keyname valuename parameters. For example, we will remove an existing key in the HKEY_LOCAL_MACHINE \ SOFTWARE \ acer commands on the command line then it is reg delete HKLM \ Software \ acer. On the question that appears, type Yes.
- We will try to add a registry key. Reg add command is essentially a keyname valuename parameters. For example, we will add a key in HKEY_LOCAL_MACHINE \ SOFTWARE \ test commands in the command line then it is a reg add HKLM \ Software \ test.
How, whether you’ve managed to try it? This you can use as a media fatherly other registry edit. Good luck.