Windows 7 Explorer not showing drive while it shows in computer management

USB Flash Drives All USB Flash Drives
36

Using Samsing Kies, v2.5.1.12123_2 on Win 7 Pro (x64), HP ProBook 4530s

USB devices are

  1. SanDisk Cruzer 32GB (SDCZ36-032G, BM1107OGNB)
  2. SanDisk Cruzer Glide 64GB (SDCZ60-064G, D33724)

Same issue, start the Kies app and Cruzer’s are no longer populated in My Computer. Changed drive letters, removed/unistalled USB root hub in device manager, rebooted machine, reconnected cruzer…still not recognized. Stopped the Kies tree in task manager/processes, plugged Cruzer in and now recognized.