These Windows 10 tips by PC expert and technology writer Ed Bott are a great way to optimize your Windows use. He is an award-winning technology writer with more than two decades of experience writing for mainstream media outlets and online publications. Bott is also the author of more than 25 books on Microsoft Windows and Office, including Windows 7 Inside Out (2009) and Office 2013 Inside Out (2013).

Here are seven Windows 10 to help you start flying through Windows.

SEE: Top Windows 10 run commands (free PDF) (TechRepublic)

How to start in Safe Mode in Windows 10

If you’ve used Windows for long enough, your muscle memory probably takes you straight to the F8 key when you want to interrupt startup and troubleshoot a problem in Safe Mode.

On modern hardware running Windows 10, however, that shortcut doesn’t work. Instead, you need to use one of these alternative paths to start the Windows Recovery Environment (WinRE), where Safe Mode is an option.

  • Is Windows already running? Go to Settings > Update & Security > Recovery, and then click Restart Now under the Advanced Startup heading (Figure A).
  • Windows won’t start but you can get to the sign-in screen? Click the Power icon in the lower right corner and then hold down Shift as you click Restart.
  • Windows crashes too early to allow either of those options? Use the PC’s power switch to restart. After three failed boot attempts, WinRE starts automatically.

Figure A

From the WinRE options menu, click Troubleshoot > Advanced Options > Startup Settings. From that screen, click Restart to display the classic startup menu with three entries for Safe Mode, including options for Safe Mode with Networking and Safe Mode with Command Prompt.

How to turn anything into a PDF file

One of the most effective ways to share information is with the ubiquitous PDF file format. Every modern computing device includes the capability to read PDF files, which you can send as an email attachment or via a link to a cloud storage service.

Every copy of Windows 10 includes a built-in PDF print driver, which means you can turn anything you can print from a Windows app (including a web browser) into a PDF file with a few clicks.

From any app, use the Print command and then, in the Print dialog box, select Microsoft Print to PDF as the destination printer. Adjust other options, including the orientation and virtual page size, as needed Select Print, specify the name and location of the final document, and then click Start to create the document (Figure B).

Figure B

If you prefer a third-party PDF converter, you can remove the Microsoft PDF printer in either of two ways: Open Settings > Devices > Printers & Scanners, click the Microsoft Print to PDF option, and then click Remove Device (Figure C). A more drastic alternative is to remove the entire feature: Search for the Turn Windows Features On Or Off dialog box and clear the box to the left of Microsoft Print to PDF.

Figure C

How to create a custom Documents library for faster searches in Windows 10

Even the most organized individual can have trouble keeping track of files that are scattered across multiple locations, especially when your filing system includes multiple local drives (such as a Documents folder on the system drive and an Archive folder on an external drive) as well as folders on cloud services that you share with co-workers or family and friends.

To bring all those files together into a single virtual folder that you can search at one time, use a Windows library. If the Libraries heading isn’t visible in File Explorer, right-click the navigation pane and click Show Libraries (Figure D).

Figure D

You can right-click and use the New menu to create a new library from scratch. Or use one of the four default libraries that are automatically created for each user account. In File Explorer, click the Documents icon under the Libraries heading to display the library’s content; then click Manage Library on the Library Tools tab. Use the Add and Remove buttons to specify which folders are included in the library (Figure E).

Figure E

Opening the Documents library in File Explorer gives you a unified view of all those files, which you can browse, sort, filter, and, most importantly, search just as if they were all neatly stored in the same folder. When you use the search box from a library, your search results come from all library locations. But because a library is a virtual folder, the folders themselves remain in their correct location, and any changes you make are saved exactly where they should be.

How to make your laptop run as long as possible with Battery Saver

Here’s a surefire recipe for anxiety: You have a long, compute-intensive task ahead of you, and there’s no power outlet nearby.

Maybe you’re on an international flight and your plane doesn’t offer AC power. Maybe you’re working on site at an archeological excavation or an early-stage construction site. Regardless of the location, when you want your Windows 10 PC to keep working as long as possible, switch into Battery Saver mode as soon as possible.

To turn on Battery Saver manually, go to Settings > System > Battery and slide the Battery Saver Status Until Next Charge switch to the On position. By default, this setting turns on automatically when your remaining battery life hits 20%. You can change that value to as high as 100% if you want Battery Saver on at all times when you’re not plugged in (Figure F).

Figure F

In Battery Saver mode, the Mail & Calendar and People apps stop syncing; most scheduled tasks are delayed and non-critical telemetry uploads are blocked; and apps that normally run in the background are no longer allowed to do so. The effect on battery life can be significant.

An overlay on the battery icon shows when you’re running in Battery Saver mode (Figure G). To return to normal operation, connect to external power or slide the Battery Saver switch off.

Figure G

How to use the Whoami command to get details about your user account

“Who am I?” is a philosophy question designed for late-night debates in college dorm rooms. Whoami, on the other hand, is an obscure but extremely useful Windows command.

When you run the whoami command at a Windows command prompt without any switches, you get the barest of details: your current domain and user name, in the form domainusername (if you’re signed in with a local account or a Microsoft account, domain shows your computer name).

Tack the /? switch to the end of the command to see options for displaying and formatting additional information about the user account that’s currently signed in (Figure H). For the most complete display, use whoami /all /fo list, which displays the security identifier (SID) for the current user, along with information about group memberships and privileges.

Figure H

The /fo list switch changes the default display from table (which can be hard to read) to a neatly formatted list. Use /fo csv switch to change the output to comma-separated values, which you can import into a spreadsheet.

Do you know where your BitLocker recovery key is?

BitLocker drive encryption is one of the signature features of the Pro and Enterprise editions of Windows 10. When you enable BitLocker on a drive, you make it impossible for an attacker to steal data from that drive unless they have the decryption keys.

Normally, drives that you’ve encrypted using BitLocker unlock automatically when you sign in with your Windows credentials. But you can get locked out under other conditions as well, by actions as simple as updating a system’s firmware. And you really can’t appreciate what a sinking feeling in the pit of your stomach feels like until you see Windows demand your 48-digit numeric key before it will allow you to access your data.

If you signed in to Windows with a Microsoft account, your BitLocker recovery key is in OneDrive; from any device, go to and sign in with the same Microsoft account to retrieve the key.

If you’re not signed in with a Microsoft account, or you just want a belt-and-suspenders backup of that key, use the Bitlocker management tools in Control Panel. Right-click the drive icon in File Explorer, click Manage BitLocker, and then click Back Up Your Recovery Key (Figure I). You can print the key, or save it as a text file to an external drive. Just don’t forget where you stored it.

Figure I

How to set up a Windows 10 PIN

Strong, hard-to-guess passwords are essential for securing online accounts, but typing a long string of letters, numbers, and symbols can feel like a burden when signing in to a PC using that account. For devices running Windows 10 that are connected with a Microsoft account or Azure Active Directory, you can set a PIN as an alternative to your password. Signing in with a device-specific PIN grants you quick access but still keep your system safe from intruders and, as a bonus, prevents “shoulder surfers” from stealing your online credentials as you type.

To add, remove, or change a PIN, go to Settings > Accounts > Sign-in Options and click Windows Hello PIN (Figure J).

Figure J

For extra security, consider using extra digits instead of the default four. A Windows Hello PIN can be up to 127 characters long. You can also include characters and symbols instead of just numbers; that option allows you to use a PIN as a device-specific password that unlocks your Microsoft or Azure AD account.

You can always switch between PIN and password by clicking or tapping the Sign-In Options link on the screen where you enter your credentials.