Three problems and solutions that are often encountered when using win10 system

Win10 grand launch, many people have chosen to upgrade win10, but after the upgrade there are a lot of problems, then how to solve it? The following small series based on their own personal experience to tell you how to solve the problems encountered by win10 .
First, win10 can not adjust the brightness of the screen
1, you can first try to uninstall the discrete graphics driver in safe mode, you can uninstall. If it is not easy to use, check whether the discrete graphics driver is installed. After installation, the brightness cannot be adjusted.
2, you can use the following method to solve:
right click "start", select "run" <; enter “ regedit & rdquo;, open the registry, find: {HKEY_LOCAL_MACHINESYSTEMControlSet001ControlClass{4d36e968-e325-11ce- Bfc1-08002be10318}. Change the KMD_EnableBrightnessInterface2 key value in 0000 and 0001 to 0, and the type is REG_DWORD. If there is no such key, create a new key. Without 0001, modify 0000. After the modification, restart the device and see if you can adjust the brightness.

Second, win10 use the command to configure WIFI hotspot failure Description:
After upgrading 10, use the command to configure WIFI hotspot failure error, as shown below:

The solution is as follows
1. Right click on “this computer”,<;manage","device manager", click “product", select “show hidden device", then find Microsoft Managed Network Virtual under Network Adapter adapter. Enable the adapter and then configure the virtual WIFI hotspot. You can do it after the configuration is complete.

3. After upgrading Windows 10, there will be blue double arrows in the upper right corner of the folder icon and desktop icon. (How to remove the two-way blue arrow in the upper right corner of the Win10 folder?) as shown below.

1. Select the folder with the blue double arrow, right click and select “Attributes”, then click “Advanced”. Then deselect in "Compression and Encryption Properties".


2, a desktop shortcut icon will return to normal. Can be applied to all sub-files and sub-folders as needed, but can not be modified without affecting the use.