After getting some malware, I have reinstalled Windows 10 several times. The malware appears to be gone, but some applications take forever to load. After a fresh restart, I double-click on the iTunes icon, and nothing happens. A good ten minutes later iTunes finally appears. Picasa 3 is also extremely slow; the program loads, but it's in a freeze state for a good 5-10 minutes.
However, Firefox and I.E. all appear to be opening just fine. Please help!