Qt Creator won't start

[wmao1]

I have just installed Qt 5.9.8 msvc 2015 64bit for Windows 7 Professional. qtcreator won't launch. There is an "QC" icon at the bottom but won't expand after clicking on it.
Tried the following tricks based on different suggestions:

1. Tried to reinstall Qt and tried a Standalone Qt Creator installation, won't work.
2. Tried command line: qtcreator -noload Welcome, won't work.
3. No "QtCreator.ini.lock" in the computer.
4. Hard disk has 45 GB free space.

Any other comments?

Thanks!

[hskoglund]

Hi, just guessing, but try disable your anti-virus program.

[SGaist]

Hi and welcome to devnet,

Do you have any error message ?

[jsulm]

This post is deleted!

[J.Hilk]

@wmao1 maybe its offscreen ?

Have you tried moving it around with WindowsKey + ArrowKeys ?

[wmao1]

@SGaist No error message

[wmao1]

@J.Hilk Only showing on the Task bar. No response when clicking it. Tab+Alt won't display it.

[jsulm]

@wmao1 Antivirus software disabled (as @hskoglund suggested)?

[wmao1]

@jsulm @hskoglund I am not allowed to disable the anti-virus software, which is managed by security administrator. :(
One of my colleagues installed Qt and his qtcreator has no problem with the same anti-virus software.

[jsulm]

@wmao1 In that case I suggest that your administrator takes a look.
Tell him that QtCreator doesn't work on your machine. It could be something with your machine (not saying it's not a QtCreator issue).

[KroMignon]

@wmao1 Have you tried to start QtCreator with parameter -noload all -load Core?

[wmao1]

@KroMignon tried "qtcreator -noload all -load Core", did not work.

[wmao1]

Solved. It is hiding at the corner of the task bar.