I’m having a strange problem with my computer at work. It runs unusably slow for 25 minutes after login and then starts to behave normally. I use VPN to access secure documents from work and I archive these work documents to a flash drive. I look at task manager and it shows that LSASS.EXE is taking up 100% cpu usage during the first 25 minutes, and then going to normal level. I’m sure it’s not virus or spyware as I checked. Does anybody remember same problem. Would appreciate any help. Thanks