The large majority of XP freezes and slow startup issues are directly related to those applications you leave initialized as the system boots. Windows does provide a system configuration tool to help you troubleshoot these problems.

Many people do not know about the system configuration tool since it is not readily accessible via the menu (is found via the start menu, run program by entering msconfig). It provides a tab listing all of the different applications and services started when the system boots. You can then do a very simple Windows XP slow startup fix by on checking though services you do not require. This disables them from initialization. The major proviso when using this tool is to be familiar with what services you actually disable and research the external fault online first if you do not know exactly what they do.

For each of those applications left enabled, you then need to check the task manager to see how much memory their using. Many Windows XP freezes and startup issues are directly related to out of date applications/services. The processes tab in the task manager shows you the amount of RAM memory each program uses so try to pinpoint those enabled in the configuration tool which use an excessive amount. Check these programs for updates online. You could also consider completely replacing the utility with another software tool that can perform the same activities.

Finally, startup issues and Windows XP freezes can also reach you to a number of general performance problems. To fix these you should also check that you have sufficient virtual memory allocated, that disk defragmentation has been one at least every month and that you have left plenty of free space in your hard drive for virtual memory to expand. It also makes sense to run an anti-virus scan and then run Windows update service to get the latest operating system patches.