What is the Windows Projected File System?

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In the latest builds of Windows 10, there is a new feature, in Beta, called Windows Projected File System. I cannot find any information on Google, other than programming APIs that do not make sense to me.



What is it, and what kind of users would it be targeted for?



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  • 1




    You didn't Google very hard... I found this in 1 search windowsreport.com/windows-file-protection-windows-10
    – spikey_richie
    27 mins ago










  • @spikey_richie As a quick reminder, Windows File Protection (WFP) prevents programs from replacing critical Windows system files. In other words, apps and programs cannot overwrite these files because the OS and other programs use them regularly. This does not tell the reader what the Projected File System is, it describes file protection. Very different subject matter
    – Canadian Luke
    25 mins ago










  • I'm really sorry, I should have read the article properly. I saw a shiny title and pasted it in. Apologies.
    – spikey_richie
    22 mins ago










  • No problem. I read it a couple times and shook my head at how they're click-baity
    – Canadian Luke
    20 mins ago










  • Yeah, totally! I then read the comments. Try this one: twitter.com/bionicbeagle/status/985572896142708737?lang=en
    – spikey_richie
    19 mins ago














up vote
1
down vote

favorite












In the latest builds of Windows 10, there is a new feature, in Beta, called Windows Projected File System. I cannot find any information on Google, other than programming APIs that do not make sense to me.



What is it, and what kind of users would it be targeted for?



enter image description here










share|improve this question

















  • 1




    You didn't Google very hard... I found this in 1 search windowsreport.com/windows-file-protection-windows-10
    – spikey_richie
    27 mins ago










  • @spikey_richie As a quick reminder, Windows File Protection (WFP) prevents programs from replacing critical Windows system files. In other words, apps and programs cannot overwrite these files because the OS and other programs use them regularly. This does not tell the reader what the Projected File System is, it describes file protection. Very different subject matter
    – Canadian Luke
    25 mins ago










  • I'm really sorry, I should have read the article properly. I saw a shiny title and pasted it in. Apologies.
    – spikey_richie
    22 mins ago










  • No problem. I read it a couple times and shook my head at how they're click-baity
    – Canadian Luke
    20 mins ago










  • Yeah, totally! I then read the comments. Try this one: twitter.com/bionicbeagle/status/985572896142708737?lang=en
    – spikey_richie
    19 mins ago












up vote
1
down vote

favorite









up vote
1
down vote

favorite











In the latest builds of Windows 10, there is a new feature, in Beta, called Windows Projected File System. I cannot find any information on Google, other than programming APIs that do not make sense to me.



What is it, and what kind of users would it be targeted for?



enter image description here










share|improve this question













In the latest builds of Windows 10, there is a new feature, in Beta, called Windows Projected File System. I cannot find any information on Google, other than programming APIs that do not make sense to me.



What is it, and what kind of users would it be targeted for?



enter image description here







windows-10






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 32 mins ago









Canadian Luke

17.7k3084142




17.7k3084142







  • 1




    You didn't Google very hard... I found this in 1 search windowsreport.com/windows-file-protection-windows-10
    – spikey_richie
    27 mins ago










  • @spikey_richie As a quick reminder, Windows File Protection (WFP) prevents programs from replacing critical Windows system files. In other words, apps and programs cannot overwrite these files because the OS and other programs use them regularly. This does not tell the reader what the Projected File System is, it describes file protection. Very different subject matter
    – Canadian Luke
    25 mins ago










  • I'm really sorry, I should have read the article properly. I saw a shiny title and pasted it in. Apologies.
    – spikey_richie
    22 mins ago










  • No problem. I read it a couple times and shook my head at how they're click-baity
    – Canadian Luke
    20 mins ago










  • Yeah, totally! I then read the comments. Try this one: twitter.com/bionicbeagle/status/985572896142708737?lang=en
    – spikey_richie
    19 mins ago












  • 1




    You didn't Google very hard... I found this in 1 search windowsreport.com/windows-file-protection-windows-10
    – spikey_richie
    27 mins ago










  • @spikey_richie As a quick reminder, Windows File Protection (WFP) prevents programs from replacing critical Windows system files. In other words, apps and programs cannot overwrite these files because the OS and other programs use them regularly. This does not tell the reader what the Projected File System is, it describes file protection. Very different subject matter
    – Canadian Luke
    25 mins ago










  • I'm really sorry, I should have read the article properly. I saw a shiny title and pasted it in. Apologies.
    – spikey_richie
    22 mins ago










  • No problem. I read it a couple times and shook my head at how they're click-baity
    – Canadian Luke
    20 mins ago










  • Yeah, totally! I then read the comments. Try this one: twitter.com/bionicbeagle/status/985572896142708737?lang=en
    – spikey_richie
    19 mins ago







1




1




You didn't Google very hard... I found this in 1 search windowsreport.com/windows-file-protection-windows-10
– spikey_richie
27 mins ago




You didn't Google very hard... I found this in 1 search windowsreport.com/windows-file-protection-windows-10
– spikey_richie
27 mins ago












@spikey_richie As a quick reminder, Windows File Protection (WFP) prevents programs from replacing critical Windows system files. In other words, apps and programs cannot overwrite these files because the OS and other programs use them regularly. This does not tell the reader what the Projected File System is, it describes file protection. Very different subject matter
– Canadian Luke
25 mins ago




@spikey_richie As a quick reminder, Windows File Protection (WFP) prevents programs from replacing critical Windows system files. In other words, apps and programs cannot overwrite these files because the OS and other programs use them regularly. This does not tell the reader what the Projected File System is, it describes file protection. Very different subject matter
– Canadian Luke
25 mins ago












I'm really sorry, I should have read the article properly. I saw a shiny title and pasted it in. Apologies.
– spikey_richie
22 mins ago




I'm really sorry, I should have read the article properly. I saw a shiny title and pasted it in. Apologies.
– spikey_richie
22 mins ago












No problem. I read it a couple times and shook my head at how they're click-baity
– Canadian Luke
20 mins ago




No problem. I read it a couple times and shook my head at how they're click-baity
– Canadian Luke
20 mins ago












Yeah, totally! I then read the comments. Try this one: twitter.com/bionicbeagle/status/985572896142708737?lang=en
– spikey_richie
19 mins ago




Yeah, totally! I then read the comments. Try this one: twitter.com/bionicbeagle/status/985572896142708737?lang=en
– spikey_richie
19 mins ago










1 Answer
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Projected File System aka ProjFS is a feature similar to FUSE found on Linux (or to Dokan & WinFSP). It allows apps to create virtual file systems which appear indistinguishable from local folders, but their entire contents are generated "live" by the program. (In other words, you're seeing projections of files which might not be there.)



The primary use of ProjFS is Microsoft's "Git Virtual File System", an addon to the Git version management tool aimed at increasing its performance and reducing disk space usage when dealing with massive repositories. (Git was built for repositories containing just tens of thousands of files, such as Linux.git; but Microsoft have started using it internally for the Windows source repository, which is several orders of magnitude larger.)



Currently ProjFS doesn't seem to be publicly documented, but I expect that sooner or later third-party developers will figure out how to use it as a FUSE alternative for implementing such virtual filesystems as sshfs, ftpfs, and so on.



Note: Projected File System has nothing to do with Windows File Protection.






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    1 Answer
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    active

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    votes








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    1






    active

    oldest

    votes









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    active

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    up vote
    3
    down vote



    accepted










    Projected File System aka ProjFS is a feature similar to FUSE found on Linux (or to Dokan & WinFSP). It allows apps to create virtual file systems which appear indistinguishable from local folders, but their entire contents are generated "live" by the program. (In other words, you're seeing projections of files which might not be there.)



    The primary use of ProjFS is Microsoft's "Git Virtual File System", an addon to the Git version management tool aimed at increasing its performance and reducing disk space usage when dealing with massive repositories. (Git was built for repositories containing just tens of thousands of files, such as Linux.git; but Microsoft have started using it internally for the Windows source repository, which is several orders of magnitude larger.)



    Currently ProjFS doesn't seem to be publicly documented, but I expect that sooner or later third-party developers will figure out how to use it as a FUSE alternative for implementing such virtual filesystems as sshfs, ftpfs, and so on.



    Note: Projected File System has nothing to do with Windows File Protection.






    share|improve this answer


























      up vote
      3
      down vote



      accepted










      Projected File System aka ProjFS is a feature similar to FUSE found on Linux (or to Dokan & WinFSP). It allows apps to create virtual file systems which appear indistinguishable from local folders, but their entire contents are generated "live" by the program. (In other words, you're seeing projections of files which might not be there.)



      The primary use of ProjFS is Microsoft's "Git Virtual File System", an addon to the Git version management tool aimed at increasing its performance and reducing disk space usage when dealing with massive repositories. (Git was built for repositories containing just tens of thousands of files, such as Linux.git; but Microsoft have started using it internally for the Windows source repository, which is several orders of magnitude larger.)



      Currently ProjFS doesn't seem to be publicly documented, but I expect that sooner or later third-party developers will figure out how to use it as a FUSE alternative for implementing such virtual filesystems as sshfs, ftpfs, and so on.



      Note: Projected File System has nothing to do with Windows File Protection.






      share|improve this answer
























        up vote
        3
        down vote



        accepted







        up vote
        3
        down vote



        accepted






        Projected File System aka ProjFS is a feature similar to FUSE found on Linux (or to Dokan & WinFSP). It allows apps to create virtual file systems which appear indistinguishable from local folders, but their entire contents are generated "live" by the program. (In other words, you're seeing projections of files which might not be there.)



        The primary use of ProjFS is Microsoft's "Git Virtual File System", an addon to the Git version management tool aimed at increasing its performance and reducing disk space usage when dealing with massive repositories. (Git was built for repositories containing just tens of thousands of files, such as Linux.git; but Microsoft have started using it internally for the Windows source repository, which is several orders of magnitude larger.)



        Currently ProjFS doesn't seem to be publicly documented, but I expect that sooner or later third-party developers will figure out how to use it as a FUSE alternative for implementing such virtual filesystems as sshfs, ftpfs, and so on.



        Note: Projected File System has nothing to do with Windows File Protection.






        share|improve this answer














        Projected File System aka ProjFS is a feature similar to FUSE found on Linux (or to Dokan & WinFSP). It allows apps to create virtual file systems which appear indistinguishable from local folders, but their entire contents are generated "live" by the program. (In other words, you're seeing projections of files which might not be there.)



        The primary use of ProjFS is Microsoft's "Git Virtual File System", an addon to the Git version management tool aimed at increasing its performance and reducing disk space usage when dealing with massive repositories. (Git was built for repositories containing just tens of thousands of files, such as Linux.git; but Microsoft have started using it internally for the Windows source repository, which is several orders of magnitude larger.)



        Currently ProjFS doesn't seem to be publicly documented, but I expect that sooner or later third-party developers will figure out how to use it as a FUSE alternative for implementing such virtual filesystems as sshfs, ftpfs, and so on.



        Note: Projected File System has nothing to do with Windows File Protection.







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