Tag Archives: win10

the digital signature for this file couldn’t be verified

recovery
your pc/device needs to repaired
the digital signature for this file couldn’t be verified
file:\windows\system32\winload.efi
error code:0x0000428
you’ll needto use recovery tools. if you don’t installation media(like a disc or usb device),contact your pc adaministrator or pc/device manufacturer.
press the windows key for uefi firmware settings.
General installation of Win8, if the download of someone else modified the compression package copy to the U disk installation, there may be this problem.
Only return the system to reinstall.
On the other hand, this problem occurs when you reboot after installation. At this point, do one thing before the reboot shuts down the digital signature.
The administrator runs CMD and enters BCdedit. Exe /set NointegrityChecks on after the prompt
 

Install. Net Framework 3.5 error 0x800f0950 in Windows 10

Problem: The general method is to open the control panel -& GT; Program – & gt; Enable or disable Windows -& GT; Choose 3.5. At this time, download a short time to report an error.

a) Press “Windows Logo” + “R” keys on the keyboard.

b) Type “appwiz.cpl” in the “Run” command box and press “ENTER”.

c) In the “Programs and Features” window, click on the link “Turn Windows features on or off”.

d) Check if the “.NET Framework 3.5 (includes .NET 2.0 and 3.0)” option is available in it.
————————————————

Solution: Open the search, many people have this problem, most of the offline installation method is successful. I helped my classmates do many times, but yesterday my own new computer Windows 10 Home version has been stopped in the process or prompt unable to locate the “source”, but also downloaded several versions of Win10, has been unable to install, today opened the computer and tried the result of success, record this kind of metaphysics.
installation steps:
1. Win10 operating system downloaded by MSDN, corresponding version number (possible error 0x800F081F)
2. Pull out the SXS folder in the source folder and copy it to the disk you want to use. My disk is D
. 3.win+x, the administrator runs Windows PowerShell?(Maybe sometimes the problem is dism, here I use dism. Exe)

dism.exe /online /enable-feature /featurename:NetFX3 /Source:D:\sources\sxs

Note:

a) is likely to start with, try to restart a few times (ง ง • _ •)
b) you can also try the absolute path

dism.exe /online /add-package /packagepath:d:\sources\sxs\microsoft-windows-netfx3-ondemand-package.cab 
dism.exe /online /enable-feature /featurename:NetFX3 /Source:d:\sources\sxs\microsoft-windows-netfx3-ondemand-package.cab

C) network installation command dism /online /enable-feature /featurename:NetFX3
Copyright Notice: This article is the original work of CSDN blogger “Henauchin”. It follows CC 4.0 BY-SA copyright agreement. Please attach a link to the original article and this statement.
the original link: https://blog.csdn.net/sinat_29315697/article/details/90438542

could not open `C:\Program Files\Java\jre1.8.0_191\lib\amd64\jvm.cfg’

Running Java prompt error in CMd.exe Could not open ‘C:\Program Files\Java\ Jre1.8.0_lib \amd64\ JVN.cfg’
Note: Consider the following if the environment variable is configured correctly.
Solution a:
Find the following, my computer – properties – Advanced system Settings – environment variable – Path environment variable, above our %JAVA_HOME%\bin location, there is a C:\Program Files (x86)\Common Files\Oracle\Java\ Javapath, open this folder in the resource manager, there are three Files “Java.exe” “Javaw.exe” “Javaw.exe”, delete these three Files, Because they are high in the environment variables, the Java runtime finds them first and doesn’t go to our JAVA_HOME, so it reports an error.
Scheme 2:
Moving the two JAVA_HOMES up to the front will also solve the problem.
Problem: Probably caused by reinstalling the JDK.

PY3 install box2d PY

direct PIP installation try 

>>>pip install -i https://pypi.tuna.tsinghua.edu.cn/simple box2d-py
...
 error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": https://visualstudio.microsoft.com/downloads/

  ----------------------------------------
  Failed building wheel for box2d-py
  ...

we have to go to the wheel
https://www.lfd.uci.edu/~gohlke/pythonlibs/#pybox2d

>>> pip install Box2D-2.3.2-cp36-cp36m-win_amd64.whl

tests the following code: 

import gym
env = gym.make('CarRacing-v0')
env.reset()
for _ in range(1000):
    env.render()
    env.step(env.action_space.sample())


the atari wheel here
https://github.com/Kojoley/atari-py/releases

WSL 2 needs to update its kernel components

welcome to my blog

problem description: open win10 terminal display: WSL 2 needs to update its kernel components;

download the upgrade package of WSL2 Linux kernel from Microsoft, download the link, as shown in the figure below, click “this link” to download

install the update package, all the way next, without any additional options