You can securely wipe your files, hard drive or SSD with one of these free utilities

Stoqn Tochev asked about securely erasing sensitive files without destroying everything on his hard drive. I'll discuss SSDs, as well.

When you delete a file conventionally, it goes into the Recycle Bin, where it can be easily restored. When you empty the Recycle Bin, Windows makes the space where the file once resided available for other files. But the data from the file remains until another file writes over it.

Things have changed since I last covered this topic in 2013. SSDs have become more popular, and they work differently. Also, as Windows 8 has gotten older and more mature, I felt I should discuss a tool built into that operating system. Finally, I've replaced one free tool I used to recommend with another, easier offering.

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When 'error 404 file not found' strikes: How to remove broken browser bookmarks

Rich Wynne wants an easy and automated way to remove broken bookmarks from his browser.

Any longstanding collection of browser bookmarks is likely to have some that now point to dead URLs. You could find out which ones by clicking each individual bookmark and see if it gets a 404 error—that is, if you enjoy torture.

Here are better solutions for Chrome, Firefox, and Internet Explorer.

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Why your PC has two Program Files folders, and why one of them is (x86)

Dave Thomson asked about the folders Program Files and Program Files (x86). "Why are there two, and is there some advantage of using one over the other?"

First, you shouldn't pick one over the other. Let Windows make that decision when it installs the software.

Like most up-to-date PC users, you're clearly running a 64-bit version of Windows. Computers capable of running 64-bit code (also referred to as x64) have been around for almost a decade, and are pretty much ubiquitous these days. The same goes for x64 versions of Windows.

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What to do when the PC turns on but the screen remains black

When Harrison Bywater turns on his PC, the power lights and the fan turn on, but no image appears on the screen.

I'll start with the bad news: There's a very good chance that you'll have to take the PC into the shop. The good news: With a few simple tests, you might be able to avoid that expensive trip. Or, at the very least, you'll be able to come into the shop with enough knowledge to avoid being played a fool.

[Have a tech question? Ask PCWorld Contributing Editor Lincoln Spector. Send your query to answer@pcworld.com.]

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5 things you can do with a second internal drive

When Danny had a new hard drive installed in his desktop PC, the technician left the old drive in as well. Danny asked me what he can do with the extra drive.

Hard drives and SSDs fall easily into the category of two is better than one. Not only do you have more room for storage, but you can use that extra room to speed up your PC or protect your system from a hard drive crash.

Here are a few things you can do with a second internal drive:

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The file manager that Android forgot: How to find photos and other data on your device

Yolanda Ortiz asked how she could create new folders and move photos into them on her Android tablet.

In Windows, it’s all so easy. You’ve got File Explorer in Windows 8 and Windows Explorer in previous versions, making it a cinch to create folders and copy, move, or delete files. But although Android has a perfectly fine file system, it doesn’t come with a file management tool.

The solution, of course, is to download and install one.

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