I have reinstalled linux many times(because sometimes nvidia proprietary driver purges system). Now its ok, but anything i tried to do for fixing wifi doesnt help. I`m not very good with linux, so, please, write commands that can help you to understand what to do(sorry for my english, its not my main language)
I also have installed windows 10

Weird solution

Load windows, reboot in linux. That works for me.

Edit 1:

sudo dmesg | grep -i rtw'  

output:

07:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter [10ec:b822] (rev ff)  
    Kernel modules: rtw88_8822be
08:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)  
    Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:38c2]

dmesg | grep -i rtw

output:

[    9.531403] rtw_8822be 0000:07:00.0: can't change power state from D3hot to D0 (config space inaccessible)
[    9.532679] rtw_8822be 0000:07:00.0: mac power on failed
[    9.532682] rtw_8822be 0000:07:00.0: failed to power on mac
[    9.532683] rtw_8822be 0000:07:00.0: failed to setup chip efuse info
[    9.532684] rtw_8822be 0000:07:00.0: failed to setup chip information
[    9.538094] rtw_8822be 0000:07:00.0: Firmware version 27.2.0, H2C version 13
[    9.538109] rtw_8822be: probe of 0000:07:00.0 failed with error -11  
ls /usr/lib/firmware/rtw88
README           rtw8821c_fw.bin  rtw8822c_fw.bin
rtw8723d_fw.bin  rtw8822b_fw.bin  rtw8822c_wow_fw.bin

Here is a possibly useful discussion: https://github.com/lwfinger/rtw88/issues/37 A suggestion here is: EDIT

sudo -i
echo "options rtw_pci disable_aspm=Y disable_msi=y"  >  /etc/modprobe.d/rtw_pci.conf
exit

Reboot and let us see:

sudo dmesg | grep -i rtw

Please edit your post to show the result.

I will further edit my answer to add additional troubleshooting steps if needed.

EDIT 2: Please try the solution here: https://ubuntuforums.org/showthread.php?t=2462133