Download the appropriate file for your platform. Intel filenames end with i, and Alpha updates end with a. Select standard or high encryption as necessary.

  • Main Windows NT 4.0 download page
  • Service Pack 6a (SP6a) download page
  • SP6a hotfix: Upgrades SP6 to SP6a for Intel, winntsp/patch/6.0a/alpha/en-us/q246009a.exe for Alpha
  • Compaq Alpha hardware abstraction layer (HAL) and firmware updates