Hi Everyone, We are troubleshooting a really odd issue with Windows 7 on a few identical new machines here at our food bank and we have limited resources so would appreciate the help. The machines are all identical. They have the same hardware and we have put the same data/software on all of them. We are noticing that the system log is constantly logging an "Event ID 55 NTFS error - The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume WIN7" The machines are all pretty much used for the same thing and run the same software. Can't find any pattern to when it occurs (IE: not ALWAYS when connecting an external drive, flash drive, etc). All machines have the OEM image of Windows 7. Some users have reported seeing chkdsk upon boot, but it doesn't seem to occur every time upon booting. We have found lots of threads on technet and other online resources that show Windows 7 has various bugs that can cause this, Avira can cause this, etc. We are not running Avira, the anti-virus is the same we use on all machines (Norton) because of a very generous license they give us as a charity. It doesn't SEEM to be causing any issues. We have seen some Hotfixes that reference the issue, but as with all MS hotfixes they say only apply this patch if you are severely effected by the problem. That is kind of tough to decide if we are "severely effected" by the issue but our food bank depends on these machines so we need to take care of them. Definitely seems like some type of bug though since a deep enough search into Google finds similiar reports on HP, Lenovo, and several other OEM forums. Thanks in advance for any help!

Hi, Regarding Event ID 55, this can be caused by the following reasons: 1. The disk might have bad sectors. 2. I/O requests issued by the file system to the disk subsystem might not have been completed successfully. You could try to run a Check Disk to check the result: 1. Open the Computer option from the start menu, which will display all of the drives available to scan on your PC. 2. Then, right click on the drive you wish to scan for errors and select Properties. 3. Now click the Tools menu, then Check Now under the error-checking section. 4. You have several options within the check disk tool. It is always recommended you leave the "automatically fix file system errors" box checked, as this repairs and problems found. If you want to perform a deeper scan, tick "scan for and attempt recovery of bad sectors". This second option takes longer, but is worth doing if you suspect a drive problem. Once you are configured, click Start. 5. If you try to check a disk that is currently in use, you will receive a message asking if you wish to schedule a scan. Accepting this will perform the scan next time you restart your PC Besides check disk, I would like to suggest you update the chipset driver and BIOS to the latest to check the result. Hope it helps. Alex Zhao Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.