Today I reinstalled the office computer system, the previous one has been used for more than 3 years, win10 is still good!! Ha ha
Open the giant hard download address: https://www.microsoft.com/zh-cn/software-download/windows10

the above update now, you can update the current win10 system to the latest version, I dropped the X1 also upgrade to 1903.
Click “Download tool now” to download the program. After downloading, plug in the USB flash disk of more than 8G (drop the format first) and run the downloaded program. After a while, the installation program of the system will be automatically burned into the USB flash disk. (Used to download the ISO image to MSDN. Itellyou.cn, and then burn it to a USB flash disk with other software…)
How to install skip over.
In order to catch up with the new ones, 2016 was installed in Office and activated with KMS (the self-built KMS server was placed in the internal network). When the serial number was imported in the first step of activation, an error occurred:

---Processing--------------------------
ERROR CODE: 0xC004F069
ERROR DESCRIPTION: The Software Licensing Service reported that the product SKU is not found.
---Exiting-----------------------------

Baidu can not find the answer, only with the omnipotent Google, a search, in the second to find a solution!! Baidu… I go to…
this is not an error in VLMCSD, this is a problem with Office. If you don’t have a volume license SKU installed on your system, open the C:\Program Files\Microsoft Office\root\icenses16 folder, which should be a pile of XRM-MS Files. If so, the following batch file will install the license certificate for you:

@echo off
:ADMIN
openfiles >nul 2>nul ||(
echo CreateObject^("Shell.Application"^).ShellExecute "%~s0", "", "", "runas", 1 >> "%temp%\getadmin.vbs"
"%temp%\getadmin.vbs" >nul 2>&1
goto:eof
)
del /f /q "%temp%\getadmin.vbs" >nul 2>nul

for /f "tokens=6 delims=[]. " %%G in ('ver') do set win=%%G

setlocal

set OPPKEY=XQNVK-8JYDB-WJ9W3-YJ8YR-WFG99
set PPKEY=YG9NW-3K39V-2T3HJ-93F3Q-G83KT
set VPKEY=PD3PC-RHNGV-FXJ29-8JK7D-RJRJK
set S4BKEY=869NQ-FJ69K-466HW-QYCP2-DDBV6

pushd "%~dp0"
Title Office 2016 Retail to Volume License Converter

SET OfficePath=%ProgramFiles%\Microsoft Office
if not exist "%OfficePath%\root\Licenses16" SET OfficePath=%ProgramFiles(x86)%\Microsoft Office
if not exist "%OfficePath%\root\Licenses16" (
	echo Could not find the license files for Office 2016!
	pause
	goto :eof
)

echo Press Enter to start VL-Conversion...
echo.
pause
echo.
cd /D "%SystemRoot%\System32"

if %win% GEQ 9200 (
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\ProPlusVL_KMS_Client-ppd.xrm-ms"
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\ProPlusVL_KMS_Client-ul.xrm-ms"
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\ProPlusVL_KMS_Client-ul-oob.xrm-ms"

	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\ProjectProVL_KMS_Client-ppd.xrm-ms"
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\ProjectProVL_KMS_Client-ul-oob.xrm-ms"
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\ProjectProVL_KMS_Client-ul.xrm-ms"

	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\VisioProVL_KMS_Client-ppd.xrm-ms"
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\VisioProVL_KMS_Client-ul-oob.xrm-ms"
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\VisioProVL_KMS_Client-ul.xrm-ms"

	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\SkypeforBusinessVL_KMS_Client-ppd.xrm-ms"
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\SkypeforBusinessVL_KMS_Client-ul.xrm-ms"
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\SkypeforBusinessVL_KMS_Client-ul-oob.xrm-ms"

	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\client-issuance-bridge-office.xrm-ms
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\client-issuance-root.xrm-ms
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\client-issuance-root-bridge-test.xrm-ms
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\client-issuance-stil.xrm-ms
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\client-issuance-ul.xrm-ms
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\client-issuance-ul-oob.xrm-ms
	cscript slmgr.vbs /ilc "%OfficePath%\root\Licenses16\pkeyconfig-office.xrm-ms
)
 if %win% LSS 9200 (
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\ProPlusVL_KMS_Client-ppd.xrm-ms"
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\ProPlusVL_KMS_Client-ul.xrm-ms"
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\ProPlusVL_KMS_Client-ul-oob.xrm-ms"

	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\ProjectProVL_KMS_Client-ppd.xrm-ms"
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\ProjectProVL_KMS_Client-ul-oob.xrm-ms"
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\ProjectProVL_KMS_Client-ul.xrm-ms"

	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\VisioProVL_KMS_Client-ppd.xrm-ms"
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\VisioProVL_KMS_Client-ul-oob.xrm-ms"
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\VisioProVL_KMS_Client-ul.xrm-ms"0

	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\SkypeforBusinessVL_KMS_Client-ppd.xrm-ms"
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\SkypeforBusinessVL_KMS_Client-ul.xrm-ms"
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\SkypeforBusinessVL_KMS_Client-ul-oob.xrm-ms"

	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\client-issuance-bridge-office.xrm-ms
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\client-issuance-root.xrm-ms
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\client-issuance-root-bridge-test.xrm-ms
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\client-issuance-stil.xrm-ms
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\client-issuance-ul.xrm-ms
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\client-issuance-ul-oob.xrm-ms
	cscript "%OfficePath%\Office16\ospp.vbs" /inslic:"%OfficePath%\root\Licenses16\pkeyconfig-office.xrm-ms
)

for %%a in (%OPPKEY% %PPKEY% %VPKEY% %S4BKEY%) do cscript "%OfficePath%\Office16\ospp.vbs" /inpkey:%%a
cscript "%OfficePath%\Office16\ospp.vbs" /act

echo.
echo Retail to Volume License conversion finished.
echo.
pause

If you can’t find the certificate in the C:\Program Files\Microsoft Office\root\icenses16 folder, you are advised to install 2013!!
Copy down the above code, mail a BAT batch file, paste up to run it!!