Re Install Qt Platform Plugin Windows

Hi All, I have been working on an HP laptop with Windows 10 because games were installed on it and loaded up a bogus virus protection program which caused the laptop to become very sluggish and programs, browsers, etc. Would not load up or were taking an extremely long time to open up. Eventually I was able to remove the bogus program(s), other useless programs and the games that were downloaded that started the issue. Also I was eventually able to load CCleaner and cleaned up/fixed some errors. I had to use an Avast and Malwarebytes removal tools as whatever caused the problem, would not let me do a complete uninstall of both programs. I was able to install new versions of Avast & Malwarebytes but they would not start because I get the following error(which has consistently popped up the whole time I have been working on the laptop when trying to open other programs) Pop-up error: This application failed to start because it could not find or load the Qt platform plugin 'windows' Yes I did use Safe mode to do some of what I needed. I am looking to avoid a factory install but if that is the case, I will.

Appreciate any assistance I can get. Thanks, Pete. Pete6387 wrote: Yeah, very true. Sometimes just don't want to do a reinstall, but should be done. The obvious doesn't always seem like the best answer.hahaha Hopefully the files they want to keep are not infected. Will back them up to a flash.

Homeland Security warns Windows PC users to uninstall Quicktime Fox News. Billy joel piano man legacy edition torrent. If that didn't resolve the issue, next I would probably try.

Either way, be good to know how to fix this issue if it happens in an non-infected computer.I hear you and understand your thoughts. The questions is, how much longer will it take to clear up, hours, days? Worst is when that PC comes back with the same infection or worse, starts spreading or encrypting files. I wouldn't want to take that chance.

I downloaded latest installation, and I cant start any app in bin directory. Here is error from hbdbu --------------------------- hbdbu --------------------------- This application failed to start because it could not find or load the Qt platform plugin 'windows'. Available platform plugins are: minimal, offscreen, windows. Reinstalling the application may fix this problem. --------------------------- OK --------------------------- I tried to put qwindows.dll from Qt installation, but it still doesn't work. Also, to compile app with this installation I must set SET HB_QT_MAJOR_VER=5 or else app will ask for Qt4 libs to link. (not needed, since the installation is Qt5 based, and Qt libs are there) Regards, Dusan Majkic Wings Software Luigi Ferraris 12/5/2014, 2:01 น.

> Will investigate more. I compiled Validator.hbp from qtwidgets/test. With latest latest Qt 5.3 (MinGw4.82 - OpenGL) only those dlls are needed.

(No need for platform plugin!) Validator.exe depends on and works with: Qt5Core.dll Qt5PrintSupport.dll Qt5Widgets.dll Qt5Gui.dll libstdc++-6.dll libwinpthread-1.dll libgcc_s_dw2-1.dll icudt52.dll icuin52.dll icuuc52.dll If I copy those dlls to qtcontribs/bin dir - everything works! This Qt version is without ANdroid. It could be some Android related issuse (like OpenGL). I am downloading Android version to check that also.

Luigi Ferraris 12/5/2014, 2:36 น. Hi Pritpal, congratulations! Question: I read about plugins and I understand that platform plugins can be loaded by 5 methods: 1.- from hard coded path into Qt5Core 2.- from plugins platform 3.- from path specified into 'qt.conf' plus ' platform' string 4.- from path specified in QT_QPA_PLUGIN_PATH environment variable plus ' platform' string 5.- from path added to QCoreApplication class but, with these methods isn't possible to load plugins from (I can be wrong!) How you did to achieve this behavior? Thanks in advance CdQ. Hi Pritpal, >> And a good one though. It should be easy, but bow such path will >> be known to HbQt at the run-time?

Hi All, I have been working on an HP laptop with Windows 10 because games were installed on it and loaded up a bogus virus protection program which caused the laptop to become very sluggish and programs, browsers, etc. Would not load up or were taking an extremely long time to open up. Eventually I was able to remove the bogus program(s), other useless programs and the games that were downloaded that started the issue. Also I was eventually able to load CCleaner and cleaned up/fixed some errors. I had to use an Avast and Malwarebytes removal tools as whatever caused the problem, would not let me do a complete uninstall of both programs. I was able to install new versions of Avast & Malwarebytes but they would not start because I get the following error(which has consistently popped up the whole time I have been working on the laptop when trying to open other programs) Pop-up error: This application failed to start because it could not find or load the Qt platform plugin 'windows' Yes I did use Safe mode to do some of what I needed. I am looking to avoid a factory install but if that is the case, I will.

Appreciate any assistance I can get. Thanks, Pete. Pete6387 wrote: Yeah, very true. Sometimes just don't want to do a reinstall, but should be done. The obvious doesn't always seem like the best answer.hahaha Hopefully the files they want to keep are not infected. Will back them up to a flash.

Homeland Security warns Windows PC users to uninstall Quicktime Fox News. Billy joel piano man legacy edition torrent. If that didn't resolve the issue, next I would probably try.

Either way, be good to know how to fix this issue if it happens in an non-infected computer.I hear you and understand your thoughts. The questions is, how much longer will it take to clear up, hours, days? Worst is when that PC comes back with the same infection or worse, starts spreading or encrypting files. I wouldn't want to take that chance.

I downloaded latest installation, and I cant start any app in bin directory. Here is error from hbdbu --------------------------- hbdbu --------------------------- This application failed to start because it could not find or load the Qt platform plugin 'windows'. Available platform plugins are: minimal, offscreen, windows. Reinstalling the application may fix this problem. --------------------------- OK --------------------------- I tried to put qwindows.dll from Qt installation, but it still doesn't work. Also, to compile app with this installation I must set SET HB_QT_MAJOR_VER=5 or else app will ask for Qt4 libs to link. (not needed, since the installation is Qt5 based, and Qt libs are there) Regards, Dusan Majkic Wings Software Luigi Ferraris 12/5/2014, 2:01 น.

> Will investigate more. I compiled Validator.hbp from qtwidgets/test. With latest latest Qt 5.3 (MinGw4.82 - OpenGL) only those dlls are needed.

(No need for platform plugin!) Validator.exe depends on and works with: Qt5Core.dll Qt5PrintSupport.dll Qt5Widgets.dll Qt5Gui.dll libstdc++-6.dll libwinpthread-1.dll libgcc_s_dw2-1.dll icudt52.dll icuin52.dll icuuc52.dll If I copy those dlls to qtcontribs/bin dir - everything works! This Qt version is without ANdroid. It could be some Android related issuse (like OpenGL). I am downloading Android version to check that also.

Luigi Ferraris 12/5/2014, 2:36 น. Hi Pritpal, congratulations! Question: I read about plugins and I understand that platform plugins can be loaded by 5 methods: 1.- from hard coded path into Qt5Core 2.- from plugins platform 3.- from path specified into 'qt.conf' plus ' platform' string 4.- from path specified in QT_QPA_PLUGIN_PATH environment variable plus ' platform' string 5.- from path added to QCoreApplication class but, with these methods isn't possible to load plugins from (I can be wrong!) How you did to achieve this behavior? Thanks in advance CdQ. Hi Pritpal, >> And a good one though. It should be easy, but bow such path will >> be known to HbQt at the run-time?