I rarely send a 'newbie' to do a regedit. What we do need from you MaylaJam, is more information on just what is happening and what you are doing:
1. Did you stop the program you want to uninstall first, reboot, then try the uninstall?
2. Are you looking first to see if the program has it's own uninstaller?
"One computer the option to uninstall is missing. The other computer freezes when uninstalling." Since we're working with two different systems, let's try and define each problem"
1. Compute 1- missing option to uninstall> where is it missing from? What happens?
2. Computer 2- have your checked the Event Viewer to see if there is an Error that corresponds to this 'freeze'? Do you get any message at all when it 'freezes'?
3. You have not given us any information about either of the computers. This is like looking for a black coat in a closet with the door shut and no light!
Please give Operating System, Installed RAM and processor type for each system.
Re #2, the Event Viewer- Description:
Unfortunately, many Windows XP users aren't aware of the Event Viewer, what it is, where it is, how it can help with a problem: The Event Viewer has logs for everything that happens on the computer. It has logs for Applications. It has logs for the System and it has logs for Security Audit.
There are three types of Events in the System and Apps logs:
1. Information (white circle w/blue i): this is just basic documentation of the normal working of the System or Apps.
2. Warnings (yellow triangle w/black exclamation mark) noting some problem at that moment. Warnings usually resolve on their own. If they do not, they become>>>
3. Errors (red circle w/white X- they document something that didn't work or isn't happening as it should. Each Errors has three parts: an ID#, a Source and a Description. By doing a right click> Properties, the Error will open to a screen that can be copied. These three parts taken together can usually lead to cause and resolution.
There are three sets of logs: System, Applications and Security. By opening the first two to display the Events, you can look for Errors that correspond to the time of the problem.
Do this on each the System and the Applications logs:
Click to open the log> look for the Error> right click on the Error> Properties> Click on Copy button, top right, below the down arrow and Paste here (Ctrl V)
You can ignore the Categories 1 and 2 Event types. If you have a recurring Error with same ID#, same Source and same Description, only one copy is needed. You don't need to include the lines of code in the box below the Description, if any.
The path above is based on Windows XP. IF you are using Vista, the path will be slightly different, but the principal and the outcome are the same.