recently for some strange reason, the program lsass.exe is using excessively a tremendous amount of memory. When my computer startup it uses around 7,000kb of memory. I leave the computer on for 30 minutes and come back, the number jump to 300,000kb. It have go as high as 500,000+kb . The lowest that I can keep track of now of the program is around 150,000kb and keep increases at every passing minutes. Please help as this tremendously slow down my whole system and pretty much limits the performance of all the programs I am trying to run. I run my virus scan and antivirus program and it all comes out clean. Thank you in advance for your help.