To cut to the chase, SP1 and the hotfix weren’t correctly updating the storage driver, so it couldn’t report sector size to Windows.

The clue here was that fsutil (see that Microsoft link, above) was reporting “bytes per physical sector” as “”.

windows update keeps updating same files-6

You just migrated your system to a new hard drive by cloning or restoring a backup.

Things seem to be working, but Windows Update fails.

All the comments on Amazon indicate that it’s a 7K500-500 drive with 512-byte sectors.

The one I received was actually a 7K750-500 Advanced Format drive. A Hitachi tech told me that the Back to the Windows Update problem. ) , Windows can’t detect the drive’s physical sector size, and Update (and some other features) fail.

My first choice was a Western Digital WD5000BEKT from Amazon.

It worked OK, but was too noisy: Strange Laptop Drive Noise: “Whoosh” Next choice was a Hitachi 0S02858.

The error popup says that the service isn’t running but task manager says that it is.

You’ve just been bitten by the new Advanced Format (4k-byte sector) hard drives.

lang=eng&Product Family=Software Products&Product Line=Chipset Software&Product Product=Intel® Rapid Storage Technology (Intel® RST) That Intel link target keeps changing.

Try going to and searching on “rapid storage technology”. Here are a couple of links to drive manufacturer’s tools – that should help: Western Digital documentation and tools: Advanced Format Software Hitachi whitepaper: Advanced Format Drives Hitachi Alignment tool: Hitachi Align tool Those alignment tools are the private-labeled Acronis alignment tool.

Pick the latest result that matches your operating system.