It's usually a case of malfunctioning third-party software, which can be dealt with if you:
1.) Uninstall any software you inherited but do not need.
2.) Press Windows + R, enter msconfig, and uncheck (disable) all applications and services under the Startup and Services tabs you do not need/want.
3.) Launch IE, go Tools->Internet Options->Programs->Manage Add-ons, and disable/uninstall all that you do not need/want.
Restart and the issue should usually be resolved. If not, double-check the above and see if you have the Vista DVD handy as OS repair may be required.
Hope this helps,
i have windows vista home premium on my dell inspiron 1520 and the bottom bar where the start button is doesnt work. it was previously my brothers laptop so i dont know the cause of the problem. i have worked out a way to temporarily fix it, going to the windows task manager and then ending the process of windows explorer then creating a new task and putting in explorer.exe, but it stops working when i restart the computer or i close the laptop/ make it hibernate. it is very annoying and i would like an answer to this problem that is quite easy as i am only 15 and im not an expert with computers.
any help will be much appreciated