I accidentally deleted monitor.sys files from the system32 folder
latifah.latif
Level 1
- System: windows 10 64 bit
- Battery or AC: battery
- Model: a416ja
well I don't know why I did this but, I deleted monitor.sys from the system32 folder and I replaced it with my brother lenovo monitor.sys files, thought it is just the same things. And guess what, my generic pnp monitor driver got error. suddenly my brightness can't be adjusted. The option for brightness just gone and missing. I can't find it anywhere. My keyboard shortcut for adjusting brightness also not functioning. And I'm going crazy cuz I don't know what else to do and the fact that it is my stupid doing is just so stressful.
I don't have any backup
I tried everthing, update, uninstall, enable, disable the driver. troubleshoot. cannot fixed.
Thought of rebooting my laptop, but I'm scared it'll not work.
wonder if upgrading my windows 10 will reset all the drivers or not. I dunno anymore..
Comments
I don't have your model laptop but knew basic comman knowledge.
If that particular file is deleted accedently means, you can do system restore to previous working point..you can do by go to recovery environment.
for changing brightness of monitor, we need to install proper latest graphics driver from Intel or Amd website.
if above options does not work Means, you can use dism online Restore health command.
search command in google .
moreover Monitor.sys is system driver file which is included in install.wim file or windows 10 dvd.
Hello latifah,
Please enter your C drive, there is a eSupport file that contains all the initial drivers of this model.
If you still keep it, back up the file and reset the device.
Thank you.
Hi, I already check the e support file, but there's no monitor.sys files.
i am using windows 10 20h2 64bit build no 19042.804
i uploaded monitor.sys file in zip format , downlod and unzip it .
afferwards boot the windows os into safemode,
copy the file ""monitor.sys"" to C:\Windows\System32\drivers\
if system asked permission means , give permission , once copied means , restart windows .
Omaigodddd, you're my lifesaver, it's working!!!!!! Thank you very much. May God bless you
Can your laptop connect to other monitor?
Yes I can able to connect to more monitors.
one by VGA port.
one by HDMI port
I can't though, I don't know where the problems lies, the 2nd display is not detected, I thought the hdmi cable is not working but it worked on my brother's laptop.
sorry I have different model laptop. X542UQ