Well known security researcher Steve Gibson, has made a free tool available that tests whether Windows computers are vulnerable to the Spectre and Meltdown attacks. Gibson calls his tool InSpectre and the tool is only 122 Kb in size.
To fully protect against both attacks, users have to update both their BIOS and operating system. This can have a negative impact on performance, depending on the tasks performed on the computer. InSpectre shows which updates have been installed and what has to be done to protect the system against the attacks. The tool also makes it possible to enable or disable protection against Spectre and Meltdown.
Gibson warns that his tool is new and that conclusions on the output of the tool should be carefully considered as he writes, “it has been carefully tested under as many different scenarios as possible. But new is new, and it is new. We may well have missed something. So please use and enjoy InSpectre now.
“But you may wish to check back in a few days to see whether we may have found and fixed some last bits of debris,” Gibson adds.