some time after starting windows computer HDD will start to spin all the time (or at leasts that's what HDD LED says). This makes the system respond very slow or halt making it virtually useless - it can persist for quite a long time until the system crashes with blue screen or I reset it. Sometimes shout down will also work but it takes very long time to shoutdown in such case. The problem does not seam to be related to any particular program. CPU and memory loads seam reasonable (ca 30-50% for CPU and 60-70% fro RAM which are my typical loads) Where and what for should I look for (LOGs, BSOD photos)??