It seems that attackers have been using vulnerabilities in Tor to pass on malware to users.
Effectively deterring anyone from knowing your true identity and location.
If you Google the error code, the official Microsoft response is troublesome, he says.
The first link will bring you to the official Microsoft Answers website …
If an adversary is currently patching binaries as you download them, these Fixit executables will also be patched.
Also, the Tor project has red flagged the Russian exit node for this MitM.
source: www.techworm.net