The Old New Thing

Setup could not verify integrity of file

When you try to install a patch, you may get the error message "Setup could not verify integrity of file. Make sure the cryptographic service is running." This typically means that the signature catalog has been corrupted. There was a patch to fix this problem, but of course if you haven'...

What are those little overlay icons?

Windows XP ships with a number of icon overlays. The black clock is particularly baffling because you sometimes see it even if your system is not equipped with Hierarchical Storage Management. When this happens, it's because some program (...

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