Bitdefender Labs has announced the availability of Bitdefender CryptoWall Immunizer, a free Windows tool which offers some protection against versions 1 and 2 of the file-encrypting malware.

The program appears to work by setting Windows policies to block programs from running when they’re in the %appdata% or %startup% folders.

Back in October, enterprise virtualization specialists Veeam Software announced Veeam EndPoint Backup FREE, a free file and image-based backup tool for Windows.

The package is currently only available as a private beta -- you must sign up at their website and wait to receive a download link -- but we added our name to the list, and waited for our invitation.

You’re at a web page, maybe reading a forum post, looking at a list of links. You’d like to copy them somewhere, maybe share them with someone else. But your browser has no way to work with every link on a page, so you must copy them individually, select all the text and edit it later, maybe just bookmark the site and come back when you’ve more time.

It’s annoying. But it doesn’t have to be this way. Not if you’ve equipped yourself with the Firefox addon, Copy All Links.

Digital comics often come in the form of comic book archives, typically JPGs stored in a single archive file (cbz = zip, cbr = rar, and so on).

You might think these simple compressed formats would already produce the smallest possible files, but no -- the free CbxConverter can resample images and convert them to WebP, shrinking the archives even further.

Most PC users need a good media manager, something to bring order to the mass of photos, videos and music cluttering their system.

There’s plenty of competition around, but if your needs are relatively straightforward then Diffractor could be a contender.

Utilities developer Anvisoft has released a free version of its browser security tool, Anvi Slim Toolbar.

The program provides real-time and on-demand tools to detect and remove malicious add-ons for Internet Explorer, Firefox and Chrome.

Google has unveiled Google 5.0 for iOS, a new release of its search tool for iPhone and iPad.

Version 5, which incorporates functionality from Google Now, has been rebuilt from the ground up to add a number of new features, plus show off a new look and feel that’s been designed around the new iPhone 6 product family.

Windows Calculator has improved a great deal in recent years. It still opens in a very basic "standard" view, but you also get Scientific, Programmer and Statistics modes, along with unit conversions, date calculations and more.

The free HiPER Calc Scientific seems a little basic by comparison, as it’s "just" a regular scientific calculator. But it’s compact, portable, and has more than enough functions and features to make it interesting.

It happens all the time. You’re browsing a website, engrossed in the content, when suddenly an overlay appears and blocks your view. Annoying, even when it’s displaying useful information.

Usually clicking the "x" close button will get rid of the popup, and you can carry on as you were. But if there is no "x", or it’s been carefully hidden, then you might need a little help.

If you’d like to run Android on your PC then you could install some heavyweight emulator, or maybe use a virtual machine.

But it might be easier to equip your Android device with Mobizen, a free app which allows you to view, access and control it from just about anywhere.

Microsoft Minesweeper may have been an extremely basic game, but it was also easy to play, and a fun way to pass a few minutes, which is probably why it came bundled with Windows for around 20 years.

The game was finally dropped in Windows 8, but you can get it back with the free Logyx Pack, along with 107 others: Tetris, Battleships, Reversi, Checkers, Simon Says, and many more (see below for the full list).

Before a PC can access a drive, it must first read various disk structures: the boot sector, master boot record (MBR), partition table, and so on. Normally you don’t have to care about any of that, but if these structures are corrupted, and the drive becomes unreadable, then you might want to know more.

HDHacker is a tiny tool which can read, display, save and restore a drive’s master boot record, boot sector, or just a defined number of continuous sectors. This is potentially very dangerous -- choosing the wrong drive or sectors could trash your system -- but it can sometimes be helpful.

Cloud storage provider Dropbox has released a new stable build for desktop in the shape of Dropbox 3.0.3 for Windows, Linux and Mac.

The interface has been rewritten, bringing high DPI support on Windows, a revamped setup wizard for Linux, improved performance, and reportedly fixing "a large number of issues/ glitches" reported over the years.

It may be very old, but Microsoft's Compiled HTML Help (CHM) is still a common format for software documentation, as well as the occasional e-book.

Windows has a standard HTML Help viewer which should be able to display most files, but it’s a little fragile (just search the web for "regsvr32 hhctrl.ocx"). It may not work well if you need to display files in various character sets. And even if there are no problems, it's still a very basic viewer.

PhotoStage Slideshow Producer is a free-for-personal-use video slideshow creator with plenty of unusual extras.

Installation is quick and easy. We politely declined the bundled Google Toolbar, and a few seconds later the program launched.