Android: scan APK before install them

.APK are the installation files of Android applications (packages).
Over the Play Store you can download apps from other sources and then transfer them to the device (this is also called sideload), also you enabled the Unknown sources option in Security settings of your device you can install the APKs.

But there is a problem, the APK you download from unknown sources could contain viruses/malware.
Before you install them a scan is highly recommanded.
There are various online scan services, as they use different engines the results are reliable:

NVISO ApkScan
VirusTotal
Andrototal
NetQin
Metadefender

Most interesting Bitcoin services

Bitcoin is a virtual money (or better cryptomoney) based on P2P. For their features is used especially by hackers or who develop and deploy ramsonware, but not only.
How Bitcoin works? A good starting point can be the FAQ on official site.

You can buy Bitcoin using various services (read below), even with Ebay or collect with mining process.
To use Bitcoin you must have a wallet that allows start making payments with merchants and users.

How can you use Bitcoin?
A Reddit user has asked members of the Bitcoin subreddit how they spend their bitcoins on an everyday basis. From Food Delivery to Electronics, from Gaming to Gift Cards, etc…

Due to increasing popularity there are various Bitcoin services, here a list of the most useful:

Coinmill is a currency converter, from BTC to USD/EUR etc… and viceversa
Gobitcoin.io is another currency converter
Snapcard and Coinbase are two popular wallets, they allows to easily buy and sells Bitcoin.
LocalBitcoins allows to easily buy and sell Bitcoin.
Coinmap is a global map of Bitcoin accepting venues.
Bitpay is a trusted payment platform

BSOD with Amazon Kindle after Windows 10 Anniversary Update

If you run Windows 10 as operating system and have installed the Anniversary Update you could have a BSOD when plugging an Amazon Kindle device, with the error message KMODE_EXCEPTION_NOT_HANDLED.

To solve this problem there are some quick solutions suggested in a thread of Amazon Kindle forum:

– uninstall Apple Bonjour (it’s a service related to iTunes). iTunes will continue to work, you will just get a warning that Apple Bonjour isn’t installed.

– uninstall McAfee product, it can have a conflict

If you still get the BSOD another user suggest to plug the Kindle ebook when the pc is powered off and then power on.

Waiting for an official fix (from Microsoft or an update of the Kindle firmware) you can try these workarounds.

Free software review August 2016

Most interesting free and opensource software of the month:

Vopt is a Windows defrag and cleanup tool. Supports Windows 7 – 10, Vista, XP and Servers 2003-2012.

Rambox free and opensource messaging and emailing app, available for Windows, Mac and Linux.

Steam Library Manager allows to backup, restore and move Steam games.

AnyBurn CD and DVD burning software, available also as portable version.

Stremio multiplatform software (Windows, Linux, Mac) for streaming. Has an huge library, supports subtitles and Apple TV and Android Chromecast for the cast, add content from your local drive.

Ring multiplatform (Windows, Linux, Mac, Android) messaging software based on OpenDHT protocol and secure (end-to-end cryptography).

Best tools for multiboot USB creation

There are various free tools that allows to create multiboot USB.
The big advantage is that you can use more than one ISO that can run from boot, for example install various Windows and Linux OS versions, or start an utility boot cd (eg. Hiren’s Boot CD).

Rufus – available also in portable version, multilanguage, UEFI and GPT support.

YUMI – was originally intended to be used to store and run various “LIVE Linux” Operating Systems and tools from USB. Using YUMI to install Linux from USB to a Hard Drive works on some but not all distributions. UEFI YUMI – Windows Beta version available.

Universal USB Installer – similar to YUMI, allows to run various Linux Live distributions.

XBOOT – supports many Linux Distributions and Utilities. Allows to choose which bootloader to use (Syslinux, Grub4dos).

SARDU – enables you to create a Multiboot UFD containing your basic essential Utilities, Antivirus, and Windows Installers.

WinSetupFromUSB – allows to install any Windows version, various Linux distributions and utilities. Supports UEFI.