Kaspersky PURE 2.0 can run on 64-bit operating systems with the following restrictions:
- Safe Browser and Safe Run do not run on Microsoft Windows XP Professional x64 and run with a restriction (launched applications cannot create СОМ-objects) on Microsoft Windows Vista х64 and Microsoft Windows 7 х64.
- Safe Desktop does not work on all 64-bit operating systems.
- Password Manager does not work with x64 applications on all x64 operating systems.

Kaspersky PURE 2.0 is released only in
32-bit versions, compatible with
64-bit OS.
Kaspersky Lab does not release products compatible only with
64-bit OS.