This is the step
that no one wants to hear, but which needs to be said:
If you encounter mysterious failures when installing or running any of
the tools in this tool kit (that is, Easy Cleaner,
CWShredder, Sygate Personal Firewall, SpywareBlaster, GIANT
AntiSpyware, Webroot Spy Sweeper, Spybot Search & Destroy, and
Lavasoft Ad-Aware Personal), the safest procedure is to deinstall all
of them, including your virus
checker, and then reinstall all of the tools in this toolkit.
(Reinstalling the virus checker is optional; I suggest doing an online
check first instead.)
The rationale for such a drastic approach is that too often, such
mysterious failures are the direct result of hardcore spyware that is
trying to subvert the installation of tools that would otherwise find
and delete them. This is especially true if GIANT AntiSpyware or Spybot
Search & Destroy hang, since they seem to be the most frequently
targeted by hardcore spyware.
If you do this second round, it is particularly important that you
experiment with deinstalling your virus checker. I have seen a number
of cases where the spyware was resident in the virus checker itself.
Because virus checkers often have special privileges in the operating
system, the result is that even in Safe mode, the spyware can still
affect your system and prevent you from finding or deleting spyware.