If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track. Run the System File Checker tool (SFC.exe)

Find your BitLocker recovery key. Windows 11 Windows 10. A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This key, which is a 48-digit number, is used to regain access to the drive.

1. Check your speaker output. 2. Run the audio troubleshooter. 3. Verify that all Windows Updates are installed. 4. Check your cables, plugs, jacks, volume, speaker, and headphone connections. 5. Check sound settings. 6. Fix your audio drivers. 7. Set your audio device as the default device. 8. Turn off audio enhancements. 9. Restart Audio Services

Converts a decimal number to binary. Syntax. DEC2BIN(number, [places]) The DEC2BIN function syntax has the following arguments: Number Required. The decimal integer you want to convert. If number is negative, valid place values are ignored and DEC2BIN returns a 10-character (10-bit) binary number in which the most significant bit is the sign bit.

Press the Xbox button to open the guide, select Profile & system > Settings > Devices & connections > Controllers & headsets, and then select the controller you want to update. On the Xbox Wireless Controller screen, select “…” to check the firmware version for your controller.

You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows. To create installation media, go to the software download website, where you'll find step-by-step instructions.

Windows 11. PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC. How to open PC Health Check.

Converts a hexadecimal number to binary. Syntax. HEX2BIN (number, [places]) The HEX2BIN function syntax has the following arguments: Number Required. The hexadecimal number you want to convert. Number cannot contain more than 10 characters. The most significant bit of number is the sign bit (40th bit from the right).

Converts a decimal number to binary. Syntax. DEC2BIN (number, [places]) The DEC2BIN function syntax has the following arguments: Number Required. The decimal integer you want to convert. If number is negative, valid place values are ignored and DEC2BIN returns a 10-character (10-bit) binary number in which the most significant bit is the sign bit.

Converts a binary number to hexadecimal. Syntax. BIN2HEX(number, [places]) The BIN2HEX function syntax has the following arguments: Number Required. The binary number you want to convert. Number cannot contain more than 10 characters (10 bits). The most significant bit of number is the sign bit. The remaining 9 bits are magnitude bits.