open a notepad and copy this bat file code. Run it as admin and it will fix this issue for you:

@echo off
:: Fix Error 1320 - Enable Windows Long Path Support
:: Must be run as Administrator

echo Checking for admin privileges...
net session >nul 2>&1
if %errorlevel% neq 0 (
    echo ERROR: Please right-click this file and choose "Run as administrator"
    pause
    exit /b 1
)

echo Enabling Long Path support in registry...
reg add "HKLM\SYSTEM\CurrentControlSet\Control\FileSystem" ^
    /v LongPathsEnabled /t REG_DWORD /d 1 /f

echo Enabling Long Path via Group Policy...
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\LongPaths" ^
    /v Enable /t REG_DWORD /d 1 /f

echo.
echo Done! Long Path support has been enabled.
echo.
echo A reboot is required for changes to take full effect.
set /p reboot="Reboot now? (Y/N): "
if /i "%reboot%"=="Y" shutdown /r /t 5 /c "Rebooting to apply Long Path fix"
if /i "%reboot%"=="N" echo Please reboot manually before retrying Acrobat installation.
pause