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Acrobat on windows, pdf preview in file explorer

When you browse folders using File Explorer, if you select for example an Excel file, you will be able to preview the file on the right, without opening it. How to get the same by selecting a pdf?

First of all, Adobe Acrobat Reader must be the default application with which you open pdf files. To try it out, just click on a pdf file and see with which application it is opened. If it is not Adobe Acrobat Reader, you have to change this setting by entering “Default apps”.

Adobe Reader configuration

To preview a pdf file in File Explorer, you need to open Adobe Acrobat Reader. On the top left, select the “Edit” menu, choose “Preferences”. Choose “General” in the Categories list. Select the “Enable PDF thumbnail previews in Windows Explorer” check box.”. Restart your pc.

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Unable to cast from Windows 10 to Chromecast


All computers cannot locate the Chromecast, whether connected via wifi or via cable.
In detail :
All smartphones connected to wifi can see the Chromecast and transmit.
All computers connected to wifi or cable can ping the Chromecast but cannot find it in transmission.
Some computers are in domain (win 10 pro) or out of domain (win 10 home).
Disabling the firewall on a single computer does not change the result.
Disabling the firewall from the router does not change the result.

In some computer networks, Chrome on Windows 10 cannot locate the Chromecast to cast.


On your computer, open Chrome and type

chrome: // flags /

You have to enable 2 special flags. The flags are hundreds so you will have to look for them. As pictured:

media-router-cast-allow-all-ips  (Connect to Cast devices on all IP addresses)

Have the Media Router connect to Cast devices on all IP addresses, not just RFC1918/RFC4193 private addresses. – Mac, Windows, Linux, Chrome OS


Enables the native Cast Media Route Provider implementation to be used instead of the implementation in the Media Router component extension. – Mac, Windows, Linux, Chrome OS


Press the lower right “Relaunch” button to save the new settings. At this point, after Chrome has restarted, you can cast to the Chromecast.

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Windows 10 scanning software

When you buy a scanner, you are provided with scanning software from the manufacturer. This program, generally to be installed, is very often feature-rich. This richness translates into a very complex interface, perhaps in some cases not clear to users who do not need to make particular choices but simply “push a button” and start scanning.

In all cases where the manufacturer’s scanning program is “oversized” you can choose to use the scanning software included in your Windows 10.

Windows 10 contains document scanning software. This scanning software initially detects the presence of an installed scanner and allows its use.

You can launch the software by typing “wiaacmgr.exe” in the search bar.

If you want to make it even more convenient to use you can go to the System32 directory, find the software file, go over it with the mouse and push the right button; select “Send to Desktop”. You will create a shortcut for the software on the desktop.

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Black screen when capturing via Obs Studio


using a laptop with Windows 10, through obs studio you want to capture the screen but this is completely black.


  • Open Settings and search for “Graphics Settings”.
  • On new window, select “Classic App”
  • Browse to OBS studio program, that should be in C:\Program Files\obs-studio\bin\64bit\obs64.exe
  • select “Power Saving”
  • run OBS


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apple id: Cannot Reset Security Questions We don’t have sufficient information to reset your security questions

Scenario: You want to activate 2-factor authentication on your apple id. The system fails and apple support tells you that you have forgotten your security questions. Support suggests you to access to restore them but when trying to do it the error appears: “Cannot Reset Security Questions We don’t have sufficient information to reset your security questions”


Usually security questions are requested by the apple device in pairs. There are 5 possible questions and perhaps you are sure of the answer of at least one. Go to and when asked about security questions, choose that you have forgotten them. Now there will be the option to choose a single security question; choose the one you are sure of, answer and update the new security questions.

This procedure was reported to us by the apple support: do not do it if you are not in the same situation

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Aprire i file pdf.p7m online

Hai ricevuto un file con estensione p7m e non sai come fare leggerlo? I file p7m sono dei documenti su cui è stata apposta la firma elettronica.

Per aprirli, invece di scaricare ed installare dei software puoi utilizzare il servizio online gratuito di PosteCert

Scegli il file. Ci metterà un po’ a caricarlo se è grande.

Ti compare in basso un pulsante con “verifica firma”. Lo spingi

Compare una nuova schermata.In basso c’è download del file. è il tuo file leggibile

Buon Lavoro