Common Apps

pdf	Acrobat Professional	foxit reader	diffpdf (free portable app)
backup/clone	Hard Disk Backup　 EaseUS Todo Backup Free
Remote	UltraVNC	Windows Remote Desktop
Office	WPS	Sharepoint
Harddisk Benchmark	CrystalDiskMark
	Change ISO file	git clone in windows

MY　C Apps	mymoney.zip	uconfig2_compex_.zip

searchallfiles.zip | jtagparalle.zip | jtagparalle.zip |

X11 for Putty via Xming ( X-Server )

Install Xming like Xming-6-9-0-31-setup.exe In putty, enable Connection→SSH→X11→Enable X11 Forwarding

How to delete cygwin folder

Sometimes it cannot delete cygwin folders/files after copying to another pc or deleting original creator from this windows user list.

Suppose D:\cygwin.old is the folder need to be deleted:

  Start windows command line with "run as administrator
  SET FD="D:\cygwin.old"
  takeown /F %FD% /R
  icacls %FD% /grant everyone:F /t
  @cacls *.* /t /e /g \everyone:f ----- Depreciated
  RMDIR /S /Q %FD%

Windows 10 Shortcut

Windows + X	Open Start button context menu
Windows + I	Open Windows 10 settings
Windows + Tab	Launch Windows 10 Task View
Windows + S	Search the web and Windows with Cortana (keyboard input)
Windows + [Left][Right][Up][Down]	Position windows on your screen
Windows + Ctrl + D	Create new virtual desktop
Windows + Ctrl + F4	Close current virtual desktop
Windows + Ctrl + [Left][Right]	Switch between virtual desktops
Windows + H	Share content (if supported by current app)
Windows + D	Show Windows desktop
Windows + E	Open Windows Explorer
Windows + L	Lock your Windows 10 device
Windows + Space	Switch keyboard input language (if you have added at least a second one)
Windows + Shift + [Left][Right]	Move current Window from one monitor to another (when using a multiple monitor setup)
Windows + [1][2][3][…]	Open programs that are pinned to task bar E.g. if first pinned program on your task bar is Windows Explorer (from left to right), the shortcut Windows + 1 opens Windows Explorer for you.
Windows + R	Run a command
Windows + P	Project a screen
Alt + Tab	Switch to previous window
Alt + Space	Restore, move, size, minimize, maximize or close current window. Also works like a charm for Windows 10 modern apps.
Alt + F4	a) Close current window b) If you’re on your Windows 10 desktop, open Power dialogue to shut down or restart Windows, put your device in sleep mode, sign out or switch the current user

Windows 10 Issues

Search and start menu not work

Solution
sfc /SCANNOW
dism /online /cleanup-image /restorehealth
restart the windows

But someone said need to run below command;

  DISM.exe /Online /Cleanup-image /Scanhealth
  DISM.exe /Online /Cleanup-image /Cleanupimage
  DISM.exe /Online /Cleanup-image /Restorehealth

Example

C:\Windows\system32> dism /online /cleanup-image /restorehealth

Deployment Image Servicing and Management tool
Version: 10.0.10586.0

Image Version: 10.0.10586.0

[==========================100.0%==========================]

Error: 0x800f081f

The source files could not be found.
Use the "Source" option to specify the location of the files that are required to restore the feature. For more informat
ion on specifying a source location, see http://go.microsoft.com/fwlink/?LinkId=243077.

The DISM log file can be found at C:\Windows\Logs\DISM\dism.log
PS C:\Windows\system32>

Windows based netboot server for ubuntu

PXE: Preboot Execution Enviornment

PXE is a client-server interface that allows computers in a network to be booted from the server before deploying the obtained PC image in local and remote offices, for PXE enabled clients. PXE network boot is performed using client-server protocols like DHCP(Dynamic Host Configuration Protocol) and TFTP(Trivial File Transfer Protocol). PXE will be enabled by default on all computers.

Before a PXE network boot, the DHCP server/scope Options 66 and 67 should be configure

serva-configuration-for-pxe-network

Boot Ubuntu 20.04 LTS Over Network PXE Using SERVA on Windows 7/8/10

https://help.ubuntu.com/community/Installation/WindowsServerNetboot

DHCP options for PXE

Enable 066 Boot Server Host Name and enter the string value as the IP address of the machine where Desktop Central server is installed. If you are deploying OS in remote office, enter string value as IP address of the machine where distribution server of that remote office is installed.
Enable 067 Bootfile Name and enter the string value as boot\pxeboot.n12 to boot machines via legacy BIOS.
- Both the values, boot/pxeboot.n12and EFI/Boot/bootx64.efi are case sensitive.
To boot the machines via UEFI mode, for 64-bit computers enter the string valuse as EFI\Boot\bootx64.efi and for 32-bit computers, enter the string value as EFI\Boot\bootia32.efi. Now click Apply and OK.

DHCP configuration process

The client computer sends a 'discover' packet in the form of a broadcast requesting for network configuration. This packet will be received by the DHCP server.
An 'offer' packet will be sent from a DHCP server to the client. After analyzing the 'offer', the client will be assigned the network parameters like IP address, subnet mask, etc.

PXE Boot Process

The client will notify the DHCP, that it is using PXE boot server. The DHCP server will send the Next Boot Server's IP address(Option 66) and the Boot Filename(Option 67) to the client.
The client will contact the PXE boot server and request for the boot files.
The PXE boot server will send the boot files to the client through the Trivial File Transfer Protocol (TFTP).
In the DHCP server, Options 66 and 67 can be configured under scope or server options. This aids in the loading and launching of the boot files for the client computer.

SGH_WIKI

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