What is FPR in a laptop?

 Fingerprint reader (FPR)

忆江南

 江南好，风景旧曾谙：日出江花红胜火，春来江水绿如蓝。能不忆江南？

windows backup (windows 7) in windows 10 /11

 While the official "Backup and Restore" feature from Windows 7 is still included in Windows 10 and 11, it's not the primary backup tool anymore. Windows 10 and 11 primarily use File History for backups, and "Backup and Restore" (Windows 7) is more of a legacy tool for restoring older system images. 

How to use the Windows 7 backup tool in Windows 10/11:

1. 1. Access the Tool:

   Open the Control Panel, then navigate to System and Security > Backup and Restore (Windows 7). 
2. 2. Choose an option:

   You can either select "Set up backup" to create a new backup or "Restore my files" to restore from an existing backup. 
3. 3. Follow the prompts:

   The tool will guide you through the backup or restore process, allowing you to choose files to back up, select a storage destination, and configure backup settings. 

Important Notes:

• Legacy Tool:

  "Backup and Restore (Windows 7)" is considered a legacy feature and may not be as reliable or feature-rich as the newer File History or third-party backup software. 
• File History:

  Windows 10 and 11 have their own built-in backup feature called File History, which can be used to back up your files. 
• Third-party alternatives:

  Consider using third-party backup software like Macrium Reflect or Veeam Backup & Replication Community Edition for more advanced backup capabilities. 

windows 10 / 11 file history as backup

 windows 10 / 11 file history as backup

In Windows 10 and 11, File History can be used as a backup solution for your personal files. It automatically creates backups of specific folders (like Documents, Pictures, Music, etc.) to an external drive or network location. You can configure File History to back up files to a specified drive, adjust the backup frequency, and even exclude certain folders from the backup process. 

Here's how to set up and use File History:

1. Connect a backup drive: Ensure you have an external hard drive or network location where you want to store your backups. 
2. Open File History settings: You can access it through Settings > Update & Security > Backup (in Windows 10) or by searching for "File History" in the Start menu. 
3. Select a backup drive: Choose the drive where you want to store the backups. 
4. Turn on File History: Toggle the "Turn on" switch to activate File History. 
5. Customize settings (optional):
   • Add or exclude folders: You can add specific folders to be backed up or exclude folders from the backup. 
   • Set backup frequency: Choose how often you want File History to back up your files (e.g., hourly, daily). 
   • Advanced settings: You can also configure how long to keep backup copies. 

Restoring files with File History:

1. Navigate to the File History folder: Locate the backup folder on your designated drive.
2. Browse and select files: Find the specific file or folder you want to restore.
3. Copy to a new location: You can copy the file or folder back to its original location or a different location. 

For a more complete system backup, including apps and settings, consider using Windows Backup,

builtin windows 10 backup ?

 Yes, Windows 10 has a built-in backup feature called Windows Backup, which allows you to back up your files, apps, settings, and even create system images. This feature can be accessed through the Settings app under Update & Security, or through the Control Panel for older versions of the feature. 

Here's a more detailed explanation:

1. Windows Backup (Modern Interface):

• This feature, accessible through the Settings app, allows you to back up your files, apps, settings, and even your system.
• You can choose to back up to an external drive, a network location, or even OneDrive. 
• To access it, go to Settings > Update & Security > Backup. 
• You can then configure which folders (like Desktop, Documents, Pictures) to back up, and which apps to include. 
• It also allows you to back up your credentials (like Wi-Fi passwords). 
• You can also choose to back up a system image, which is a complete copy of your operating system and all your files. 

2. Backup and Restore (Legacy Interface):

• For a full system image backup, you can access the older Backup and Restore tool through the Control Panel.
• To find it, search for "Control Panel" and then go to System and Security > Backup and Restore.
• You can then create a system image and save it to an external drive. 

3. OneDrive Integration:

• If you have a Microsoft account, Windows Backup can also be used to sync your Desktop, Documents, and Pictures folders to OneDrive.
• This provides cloud storage for your backups. 

4. Restoring from a Backup:

• If you need to restore your files, apps, settings, or your entire system, you can use the same backup and restore tools to restore from a previous backup. 

In summary, Windows 10 offers a comprehensive backup solution, allowing you to back up your files, settings, apps, and even create system images, with options for local and cloud storage. 

what is the SMV in APC Easy UPS SMV,

 In APC's Easy UPS SMV line, "SMV" stands for Sinewave Multi-Voltage. This indicates that the UPS provides a pure sine wave output and can handle a wide range of input voltages, making it suitable for use in areas with inconsistent or unstable power conditions, according to Schneider Electric. The SMV series is designed to deliver reliable power protection for various applications

difference between apc backup ups easy ups and smart ups

 APC Back-UPS, Easy UPS, and Smart UPS are all Uninterruptible Power Supplies (UPS) but cater to different needs. Back-UPS is a basic, cost-effective option for protecting home electronics and personal computers. Easy UPS offers a more robust solution for homes and small businesses, often with features like surge protection and more reliable battery backup. Smart UPS is designed for businesses and critical systems, providing advanced features like network management, remote control, and more robust protection against power fluctuations and outages. 

difference between Wifi 6 and AX WiFi 6E

 The main difference between Wi-Fi 6 and Wi-Fi 6E is that Wi-Fi 6E extends the Wi-Fi 6 standard to utilize the 6 GHz frequency band, while Wi-Fi 6 uses the 2.4 GHz and 5 GHz bands. This allows Wi-Fi 6E to offer faster speeds, lower latency, and reduced congestion compared to Wi-Fi 6. 

ag 400nits what is it ?

 "AG 400nits" refers to a laptop screen specification. "AG" stands for anti-glare, and "400nits" indicates the screen's maximum brightness. In simpler terms, it's a laptop screen designed to reduce glare and have a brightness level of 400 nits

what is WUXGA?

 WUXGA stands for Wide Ultra Extended Graphics Array. It's a display resolution of 1920x1200 pixels. This resolution is a wide-screen version of UXGA (Ultra XGA). WUXGA is also sometimes referred to as "FHD+" because it builds upon the 1080p resolution by adding 120 vertical lines. 

tilapia ~~~ 罗非鱼

 tilapia ~~~ 罗非鱼

my Dell laptop W11 face login stopped working a few days ago

so I dig in to have a look

remove face login

re-add

then I found my camera is showing a black blank screen

try an app like google meeting, all black blank

update w11 

update the Dell

all to no avail

then I remembered that I sort of touch the laptop top frame a few days ago

there is a camera hardware switch on top of the cameras (IR)

even if those lens are covered , those LEDs are all still blinking

slide the switch , alas, all good

 ... make myself a fool

3-2-1 backup strategy

 https://www.crucial.com/articles/about-ssd/why-you-should-follow-the-3-2-1-backup-rule

-- quote as 

A 3-2-1 backup strategy means saving three copies of your data on two different mediums, and keeping at least one of these off-site. Let’s break down why this is effective. 

即使在你最黑暗、最艰难的日子里，也会有更好的时光”。

 即使在你最黑暗、最艰难的日子里，也会有更好的时光”。 ~~~ BG's f w

what is a good solution for a windows PC backup?

 what is a good solution for a windows PC backup?

gg-answer

A good Windows PC backup solution involves backing up your essential files and potentially the entire operating system. Options include using OneDrive, a built-in Windows backup feature, or third-party software like Veeam or Macrium Reflect. External hard drives are also a viable option for local backups, according to PCMag. 

Here's a more detailed look at some common backup solutions:

1. OneDrive:

• OneDrive is a cloud storage service that integrates well with Windows. 
• It allows you to back up your Desktop, Documents, and Pictures folders to the cloud, says Microsoft. 
• You can access your backed-up files from any device connected to your OneDrive account. 
• OneDrive offers a free plan with 5GB of storage and paid options for more storage. 

2. Windows Backup:

• Windows 10 and Windows 11 include built-in backup features like File History and Windows Backup. 
• File History allows you to create and restore previous versions of your files. 
• Windows Backup can back up your entire system or just specific folders. 
• You can back up to an external hard drive or a network location. 

3. Third-Party Software:

• Veeam Agent for Microsoft Windows:

  A free standalone version that allows you to back up your PC to an external hard drive, NAS, or a Veeam repository. 
• Macrium Reflect:

  A popular third-party software that offers advanced features like full disk cloning and incremental backups. 
• Paragon Backup and Recovery:

  Another option for creating system images and backing up files, according to HP.com. 

4. External Hard Drives:

• External hard drives are a convenient and affordable way to back up your data locally. 
• You can connect an external drive to your PC and use it as a backup destination, according to PCMag. 
• Consider using a hard drive or an SSD (Solid State Drive) for faster transfer speeds, says PCMag.