Normally whether from a CD or from the net ,we install hips of programs or applications ,useful or sometimes , just for curiosity and then we have to uninstall them, therefore, even thou Vista is very similar to Windows XP for this issue, it's worth having a look at what to do.
How to Install Programs
Insert the program CD or DVD in the disk drive if a security message appears confirm or type the administrator password. If the Autoplay dialog box appear, (See Fig 1) choose to run the program wizard (Setup.exe)

Figure 1
If nothing happens, then click Start/Computer and double click the CD/DVD drive icon to browse the installation disk, find the program's setup file (usually setup.exe) and double click on it to start the installation. Follow the instructions on the screen. If you want to install from the Internet,click the link of the program you found on the net, normally looks something like: "Download myProgram" A message on the screen asks you whether you want to run or save the program file on your Hard drive,click run and the program will install immediately after the download. (see Fig 2)

Figure 2
Click save if you want to run the installation later by double clicking the program icon from the folder you choose to save it (see Fig 3)

Figure 3
In either case,after launching the installation follow the instructions on screen,and if a security prompt appears confirm or type the administrator password .
How To get rid of the highlight newly installed programs
Right-click the the Start Button and choose Properties / Customize button Scroll down and uncheck the tick next to Highlight newly Installed (See Fig 4)

Figure 4
To Unistall or change a Program
Go to Start/ Control Panel / Program / Programs and Features, Select the program you want to remove and then click Uninstall or Repair if you want to try to repair the program(see Fig 5)

Figure 5
Click OK or confirm if you are prompted to do so .Follow the onscreen instructions to the finish
In the list that will appear,check or uncheck the box near the feature you want to turn on/off (see Figure 7)

Figure 7
Click OK
How to launch or not to launch a program when Vista Starts
Inside the Startup folder are all the programs that open automatically when Vista starts.You can place your own shortcuts for the programs you want to start without having to do it manually. Unfortunately there are a lot of shortcuts in this folder that have been added quite rudely sometimes, while you installed a program. Most of them are not necessary and all they do is chewing up your processor time and get ram memory resources :
- Go to Start > / All programs ,right-click Startup and choose open or Open All Users if you want the changes to apply to all users
- Open Windows Explorer and navigate to C:Program files (Where C is the drive with Vista )find the program to add
- Right-click and drag the the program to the startup folder and choose Create a Shortcut here.
- To Remove the Unwanted, go to Start / All Programs /Windows Defender and when open click on Tools
- Click Software Explorer (see Fig 8)

Figure 8
6. From the dropdown menu choose startup programs(see Fig 9)
Figure 9
7. Select the program you don't want to start automatically by clicking on it.
8. Click Disable or Remove,but I recommend disable if you don't know what you're doing, confirm when you are prompted to do it(see Fig 10)

Figure 10
Now you can see the word disabled next to the program in the left pane,the next time you start your computer,a pop-up message will inform you that Vista is blocking a startup program.
How to Run Older Programs
If you have problems with programs that were running on Windows XP or earlier OS ,you can try changing the compatibility mode:.
Right-click the shortcut icon or the .exe of the program and choose Properties Compatibility tab (see Fig 11)

Figure 11
Check the Run this program in compatibility mode for and choose the OS the program used to run fine with from the dropdown menu (see Figure 11) Click OK or Apply.