My computer has been slow lately and I used everything under the sun to test it for Malware/Adware/Viruses. I even ran the Windows utilities Scan Disk and Disk defragmentor. To no avail, I could not figure it out, until I downloaded the following test utility for hard drives.
http://crystalmark.info/software/CrystalDiskInfo/index-e.html
After I ran the scan, I found that my hard drive is on the verge of crashing after four years. I now have time to replace it and mirror it before it is gone.
Crystal Disk is one awesome program!
Albert Moyer, Jr. 