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Between the 4 example provided <br />
<i>'.Parent'</i>, <i>'~$ Any_Filename'</i>, <i>'desktop.ini'</i> and <i>'Thumbs.db'</i>, only <b><i>'~$ Any_Filename'</i></b> is placed as a general example; the other 3 are exact filenames.<br />
<br />
An actual example of <b><i>'~$ Any_Filename'</i></b> within my storage would be: <b><i>'~$Client List 2015-0215'</i></b>.<br />
<br />
We have windows.old left from w10 upgrade, but in an EE question, was informed that we can delete any time and/or w10 will hold it for a period of time and not to worry.
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I do not have these. <br />
<br />
If you are satisfied that you are not going to roll back, then run Disk Cleanup and when it comes up, select the button that says Clean up System Files. Allow it to run again and select all the areas to be cleaned up including old Windows installations. <br />
<br />
Then see if you still have the problem. <br />
<br />
If so please post the Windows 10 folder name where you see the issue so that we may try to duplicate the problem.
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We decided not to run Disk Cleanup until the time passes by w10 just incase.<br />
<br />
Do you know what the file names <b><i>'.Parent'</i></b> and <b><i>'~$ Any_Filename'</i></b> are?<br />
<br />
Also how can we change the archive bit or attribute of these 2 files?
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I do not have any files like this on either of my Windows 10 Pro machines. <br />
<br />
I think (speculation) they are left over from the upgrade.
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Thanx for the info!!<br />
<br />
What about &nbsp;<b><i>'.Parent'</i></b> files?<br />
<br />
FYI:<br />
The &nbsp;temporary files with <b><i>'~$'</i></b>, if the word document is over a year old and yet the temp file-name still exist, can is it safe to delete them? or does the Cleanup as recommended in <i><b>ID: 41389996</b></i> would take care of that task?
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Awarded also the comment with Cleanup since makes sense that whenever we do decide to run, might fix or delete these temp files.
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<div class="content wysiwyg-content">
We were changing the archive bit of a series of files and found strange filenames that along with their strange name, there hidden and/or inaccessible. &nbsp;<br />
<br />
<u>Examples: </u><br />

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'<i>.Parent</i>'
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'<i>~$ Any_Filename</i>'
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'<i>desktop.ini</i>'
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'<i>Thumbs.db</i>'
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<br />
We know what are '<i>desktop.ini</i>' and '<i>Thumbs.db</i>', but we need to change the Archive bit so our backups apps Cobian don't consider them.<br />
<br />
Please advice.
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We were changing the archive bit of a series of files and found strange filenames that along with their strange name, there hidden and/or inaccessible.  

Examples: 
'.Parent'
'~$ Any_Filename'
'desktop.ini'
'Thumbs.db'

We know what are 'desktop.ini' and 'Thumbs.db', but we need to change the Archive bit so our backups apps Cobian don't consider them.

Please advice.

Strange files found in Windows 10 doesn't permit change Archive bit

Windows 10 is a personal computer operating system featuring the "universal application architecture" (UAP); apps can be designed to run across multiple devices with nearly identical code, including PCs, tablets, smartphones, embedded systems, Xbox One, Surface Hub and HoloLens. Windows 10 also includes a virtual desktop system, a window and desktop management feature called Task View, the Microsoft Edge web browser, support for fingerprint and face recognition login, voice-based search (Cortana), new security features for enterprise environments, and DirectX 12 and WDDM 2.0 to improve the operating system's graphics capabilities for games.

Windows 10

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Storage

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.