Avast Blank Text Problem

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Hello,

for some reason, Avast! got some problems of this little thing. When i'm using the program for few hours, the program doesn't show texts or anything what i cant see.
When i restart the PC, it will restore the texts back, but they will come back on few hours. I have no idea why this happens.
I tried to repair and reinstall it, but it wont fix it.

I tried my best to check why, but i don't really want this Blank Text to worry my Avast!

Some reason the blank text is not on normal page for some reason, but on options and when it wants to restart is all blank.
All is just blank, but the home page is okay.

Here is what it looks like on basic options: (check the red box)


Thank you, if somebody can know why this happens for me!

[Eddy]

What exact OS/SP ?
What exact version of avast ?
Is there any other security (related) software installed ? (or was there)
How exactly did you performed the reinstall ? (all steps)

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I was using Windows 10 Version 1607 Build 14393.693 on now (latest version).

I dont remember the version because now the Avast! wont show the text of the version
There was a new version on now, but i installed it.

Nope, only Avast! installed on my PC as first time.

I did reinstalled the Avast! as i uninstalled it, and cleaned it with the uninstall tool, who does remove all of files (and i did remove manually, what i found what i saw) and then restarted the PC. As i installed it again, all was fine, but few hours, that blank texts will happen again. Restart helps a while, but not on few hours, that its going on blank.
This happened on my mom's computer too, when i installed the fresh Windows 10. As on my other computer too.

I just don't understand how this blank texts appear as that way, if i tried to do everything as what i did.

As now, i saw this getting blanked too!!

[Eddy]

Is everything normal if you set the language to English ?

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Well... I installed the English pack, but not went nicely.

[Eddy]

Remove avast completely and then perform a real clean installation with the latest offline installer.

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Okay, i will do so, ill tell you, if i will get the same problem.

[Eddy]

Good luck and take your time.
No need to rush and forget things

[bob3160]

Clean Install of Avast:
https://goo.gl/4Ptzkf

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Hey bob3160,
I already did that, but it didn't really help at much. But its useful, but now its fine as so, for now. But i need to test that it wont get blanked again. Then something is wrong at Avast!

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Avast! does it again, it happened it now when i power up my computer.
When i disabled my shield, this what i got: (as the Avast! frozed too because it blanked out and flashed my screen so it frozed)

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Okay now i solved this problem, why the text is falling over.

The program on the Task Manager, is called a Usermode Font Driver Host.
If i killed the process, the texts falled down.

Some kind of process will make the fonts away. Not sure why its not hidden process, that Avast! would not break from it.