|28 Oct 2013||#1|
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Backup fail error 0x80070570 solved
My laptop is running Windows 7 Ultimate 64 bit but I believe this problem is not specific to the type of Windows 7. Although I could not find any problem and have not known any other symptoms, since Oct 2010 my laptop would not run Microsoft Backup correctly. I received error code 0x80070570 upon attempts to backup files. Running chkdsk did not find any errors but would reset the dirty bit on the C: drive that I was attempting to Backup. MS Backup would then allow file backup for about 2 days until the dirty bit was set again. Since then I occasionally ran chkdsk and created a backup of files.
In Oct 2013 I bought a new drive and wanted to replace my 500GB C: drive. I wanted to clone the old drive to the new and also wanted to increase the complexity of backups so I bought Acronis True Image. I found that neither Acronis not MS Backup would allow me to create a clone or even an image. Both failed and reported error 0x80070570. Reading forums and conversations with Acronis tech support led me to believe there was some file system corruption that was not detected by chkdsk but was detected by backup software. (Note that Startup Repair operations run from a Windows disk identified file system corruption but did not solve this problem.)
Source of Problem Identified
sfc /scannow as described here led me to identify a file and what appeared to be some associated registry entries that were corrupt. The file identified was a font file: mingliub.ttc. Using Windows Explorer, the font could be seen (and apparently still used by Windows) when clicking the C:\Windows\Fonts folder contents. Using and elevated command prompt and typing dir /p C:\Windows\Fonts, I saw that the file size was 0.
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