2022年3月27日 星期日

How to change the name of a user profile folder in Windows 10

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1. Try to create a new account 2. Change the new account to administrator 3. Restart computer and login with new account 4. Rename c:/Users/...

Create a local user or administrator account in Windows

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 Create a local user account 1. Select Start / Settings / Accounts / Family & other users 2. Select Add someone else to this PC 3. Selec...
2022年3月25日 星期五

Computer hardware information tools

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1. CPU-Z      https://www.cpuid.com/softwares/cpu-z.html 2. Speccy      https://www.ccleaner.com/speccy

Command Line to get Win 7 / Win 10 / Win 11 system related information

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1. Open cmd Terminal 2. Windows version      # winver 3.  local computer system information      # systeminfo     # systeminfo | @find ...
2022年3月24日 星期四

What will happen if your windows do not activate ?

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having limited access to some basic feature: 1. customize your display 2. crucial security updates, bug fixes, or patches 3. can't lock ...

VirtualBox Keyboard Not Working on Windows 10

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VirtualBox Keyboard Not Working on Windows 10 1. Open Windows Setting Manager 2. Search "Add or Remove" 3. Removed touch pad drive...

Ubuntu VirtualBox cannot create the machine folder ___MF___ in the parent folder ___PF___.

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1. Please check ___MF___ is existed. 2. Check your privilege 
2022年3月23日 星期三

Copy large file cause system hangs up on ubuntu

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1. Edit /etc/sysctl.conf 2. Added     vm.dirty_background_ratio = 2     vm.dirty_ratio = 4     vm.dirty_bytes = 15000000 3. # sudo sysctl -p...

Debug a large file copy caused system hangs up (for ubuntu)

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 use iotop to debug I/O issue 1. # sudo apt-get install iotop 2. # sudo iotop 3. start another terminal 4. # sync 5.  to monitor the process...
2022年3月19日 星期六

Win 7 / 10 查詢變更授權

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Refer: https://read01.com/zh-tw/Le32AL.html#.YjUy9H9BxEY               ( 2016/05/13  來源：紅黑聯盟) 1.  以管理員身份執行 cmd 2.  "slmgr.vbs -upk...