Now-a-days a lot of addware and malware have been introduced and released in the internet that affects system greatly. Recently, I faced a similar problem in my computer. And the problem was "Antivirus XP 2008". It changed my computer settings and my desktop colour turned to blue. The desktop properties were also locked, so I was not able to access several options like desktop, screensaver, themes etc. One of the main problem is that it starts to scan your computer automatically and I don't know whether the virus it detects is installed by it or not. But finally I got the trick to get rid of this type of malware. The procedure is as follows:Step 1: Open task manager and End the infecting processes
Go to processes and stop those processes that are named lphc9u2j0ejde.exe and rhccu2j0ejde.exe. It must be note that in other computer these processes may be named in different way. Just try to identify those processes and you will be done.
Step 2: Delete the infecting programs
Now try to locate those files that you stopped in the task manager. Then delete those files or rename those files.They are generally located in the path: C:\windows\system32\lphc9u2j0ejde.exe
C:\windows\system32\blphc9u2j0ejde.scr
C:\program files\rhc75dj0e1an\rhccu2j0ejde.exe
All these things once deleted your computer is now free from this type of malware. But you have to now remove those side effects. In order to do this follow the steps Step 3: Open msconfig to clean Start Programs
Click on startup Tab, and uncheck the boxes in front of “lphc and rhc” files.and then restart your computer.
Step 4: Change Group Policy to restore wallpaper
Go to Start -> Run... ->type ‘gpedit.msc’ in run window. This will open Group Policy.
In that navigate to User configuration ->Administrative Templates ->Control Panel-> Display.
In that double click on the following item and set them disabled in the option you will get in a new window.
1. Remove Display in Control Panel
2. Hide Desktop Tab
3. Prevent changing wallpaper
4. Hide Appearance and Themes tab
5. Hide Settings tab
6. Hide Screen Saver tab
This will return all those things in your computer.