2 Drive c: () (Fixed) (Total:298.08 GB) (Free:14.17 GB) NTFS
Above reflects insufficient free space on C: partition...standard equation for XP is 15% of total partition space. Insufficient free space seems to produce unwanted situations for users.
Please uninstall MSE. As stated, it is no longer supported and is useless. Additionally, you have Avast installed and having a defunct AV program installed can do no good whatever.
Turn off auto-update function for XP, please. If you require updates, you can manually go to the Windows Update site.
I would also remove Spybot and replace it with SUPERAntiSpyware...Spybot is not what it used to be.
Your CPU is running in the danger range, IMO. Max operating temperature range is given as 55-74 Celsius. I suggest that you consider replacing the thermal grease and cleaning the inside of the system.
You are running a very outdated and vulnerable version of IE. I suggest that you either use a different, current browser, especially since there are no additional security updates for IE forthcoming.
One of your other drives is in trouble, in danger range for temp and reflects a warning status per Speccy and SMART. This is the 74GB partition.