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  1.    31 Mar 2017 #1
    Join Date : Feb 2016
    Posts : 20
    Windows 10 Pro

    Can't preview any font in Windows 10 recent install


    Hi,

    I have this horrible problem, whenever I double click on a ttf or otf font file (not installed one) I get the error "...is not a valid font file".

    I have read around these forums and inet in general, and people is solving this activating Windows Firewall or updating the user account with administrator rights. Neither work in my case because my account is already administrator, and windows Firewall is enabled (and Norton too).

    On the other hand my case is somewhat different to other's people's: I can install them by right clicking on the file and choosing install. People seems to get my same error and also an install error when they try. But not in my case, I can install them but I can't preview them.

    I have tried to disable Norton, Zemana, HitmanPro Alert, making an entry in Norton Firewall for fontview to allow any connection, I have performed a clean boot (disabling all non-Microsoft services and all startup items), reassign fontview to the fonts extensions after changing it to another program, tried "sfc /scannow", but no luck. I have changed in registry the path from %SYSTEMROOT%\System32\... to absolute path C:\Windows\System32\... too, and then reverted, no luck in any case...

    I simply can't reinstall Windows 10 and repeat all the current software installation and configuration, I have lost already 3 weeks doing that. I can't simply afford another lost month or so.

    So I am kind of desperate, as I need to check fonts quickly as I work in PS, and although I have a Font manager installed (which I use when I need) it is not a replacement for the quick preview of Windows.

    Please, could you help me? I don't know where or what more to look for.
    Last edited by Darkbluesky; 31 Mar 2017 at 09:59.
      My ComputerSystem Spec
  2.    31 Mar 2017 #2
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,077
    Win 10 Pro (1703)

    Hi, you could try this
    Default File Associations - Restore in Windows 8
    - search for ttf and use the reg file.

    The equivalent document in this forum does not contain ttf, unfortunately.

    Recommend- back up your registry/ export the existing keys first.

    Also here's my [HKEY_CLASSES_ROOT\ttffile] (attached) from Win 10
    - note, there are a couple more keys in the one in the tutorial, but the preview association is in the attached.
    Can't preview any font in Windows 10 recent install Attached Files
      My ComputerSystem Spec
  3.    31 Mar 2017 #3
    Join Date : Feb 2016
    Posts : 20
    Windows 10 Pro
    Thread Starter

    Thanks! I have just tested this (registry backup done) but it has not solved the problem, I get the same error when I double-click it...

    Tested both, the win8 and your win10 reg files (restart after each test), but no luck.
      My ComputerSystem Spec
  4.    31 Mar 2017 #4
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,077
    Win 10 Pro (1703)

    What do you see when you double click ttf here?

    Click image for larger version. 

Name:	Untitled.png 
Views:	1 
Size:	81.5 KB 
ID:	127454

    Can you use this to re-associate it?

    Do you have a system restore point or disk image created before this happened?
      My ComputerSystem Spec
  5.    31 Mar 2017 #5
    Join Date : Feb 2016
    Posts : 20
    Windows 10 Pro
    Thread Starter

    Yes I see the same as you. This is the method I used for re-associate (before coming here to ask for help):

    Click image for larger version. 

Name:	2017-03-31_17-56-39.png 
Views:	1 
Size:	62.6 KB 
ID:	127456

    I have restore points and backup images of the system but I recall that I saw this problem several weeks ago...but as I have been in a rush to install and configure some programs I left the font problem to be solved later, now if I restore a system image, I would lose too much work/time...(and I mean, really too much)

    I guess it is my fault, for not thinking that Windows is so fragile that any problem could become impossible to solve afterwards except for a full reinstall or almost, anyway this is the situation now, I hope (!) it will be possible to fix without reinstall.

    It seems that the association is ok, and that fontview.exe is ok too (at least sfc /scannow did not found any problem), so where could be the problem? Norton blocking it? I have disabled everything (Firewall, Auto-Protect), should I totally uninstall Norton? I have UAC disabled (I tested to set it to some level of protection, apply and then disable another time, just to test, but no luck...)
      My ComputerSystem Spec
  6.    31 Mar 2017 #6
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,077
    Win 10 Pro (1703)

    Hi, try this free utility and see if it shows the same as I have. (I expect it will given the above).
    Click image for larger version. 

Name:	Snap 2017-03-31 at 18.13.24.jpg 
Views:	6 
Size:	214.4 KB 
ID:	127471

    If you right click on a font file, do you have Preview at the top of the context menu?

    Finally, what happens if you boot to Safe Mode and double click on a font file?
    Last edited by dalchina; 01 Apr 2017 at 09:04.
      My ComputerSystem Spec
  7.    31 Mar 2017 #7
    Join Date : Feb 2016
    Posts : 20
    Windows 10 Pro
    Thread Starter

    Quote Originally Posted by dalchina View Post
    Hi, try this free utility and see if it shows the same as I have. (I expect it will given the above).

    fontview.exe is not an exe you can run directly.

    If you right click on a font file, do you have Preview at the top of the context menu?

    Finally, what happens if you boot to Safe Mode and double click on a font file?
    This is what it shows:

    Click image for larger version. 

Name:	2017-03-31_19-48-48.png 
Views:	3 
Size:	88.4 KB 
ID:	127480

    Yes, I know that fontview has to be launched with an argument. I do not try to run it directly, I just double-click the font file.

    This is what shows a right click ("Imprimir" means "Print" in spanish):

    Click image for larger version. 

Name:	2017-03-31_19-49-44.png 
Views:	23 
Size:	29.9 KB 
ID:	127481

    I did boot into Safe Mode and the result of double-clicking on the ttf is the same than in normal boot (error, "...not a valid font file")
      My ComputerSystem Spec
  8.    31 Mar 2017 #8
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,077
    Win 10 Pro (1703)

    Hi, I have Preview above Print, so there's something missing in your registry.

    Click image for larger version. 

Name:	Snap 2017-03-31 at 19.11.50.jpg 
Views:	1 
Size:	101.9 KB 
ID:	127482
    Try that (free, old...)

    So it's not sthg installed interfering (Safe Mode).

    My comment about not being able to run fontview.exe directly was more an observation. Even running it from the Run box with a ttf file as argument fails.
      My ComputerSystem Spec
  9.    31 Mar 2017 #9
    Join Date : Feb 2016
    Posts : 20
    Windows 10 Pro
    Thread Starter

    Quote Originally Posted by dalchina View Post
    Hi, I have Preview above Print, so there's something missing in your registry.

    Try that (free, old...)
    I downloaded and installed, but when launched it shows a progress bar and it stops telling this:

    Click image for larger version. 

Name:	2017-03-31_20-39-57.png 
Views:	24 
Size:	12.0 KB 
ID:	127486

    I tried also to run it with Windows 95 compatibility mode, but it says the same.

    Quote Originally Posted by dalchina View Post
    My comment about not being able to run fontview.exe directly was more an observation. Even running it from the Run box with a ttf file as argument fails.
    Excuse me. I'm sorry
      My ComputerSystem Spec
  10.    31 Mar 2017 #10
    Join Date : Feb 2016
    Posts : 20
    Windows 10 Pro
    Thread Starter

    When I go to the referred registry key and click on it, the registry says this:

    Click image for larger version. 

Name:	2017-03-31_20-47-44.png 
Views:	4 
Size:	80.7 KB 
ID:	127489

    The message says something like this:

    "{03223D4D-1B28-4325-9A96-9C5A4C8EA8BC} could not be opened.
    An error prevents opening the key.
    Details: The system can't find the specified file"

    Note: the other similar keys say the same if I click on them. I don't know if this is normal.
      My ComputerSystem Spec

 
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