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I accidentally deleted monitor.sys files from the system32 folder

latifah_latif
Star I
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..

9 REPLIES 9

latifah_latif
Star I
RAJU.MSC.MATHEMATICS

https://zentalk.asus.com/en/discussion/comment/152397#Comment_152397

i am using windows 10 20h2 64bit build no 19042.804

https://us.v-cdn.net/6031231/uploads/7Y2K3JPIFVBX/monitor-sys.zip

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 .


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Omaigodddd, you're my lifesaver, it's working!!!!!! Thank you very much. May God bless you

latifah_latif
Star I
latifah.latif

https://zentalk.asus.com/en/discussion/comment/152400#Comment_152400

Omaigodddd, you're my lifesaver, it's working!!!!!! Thank you very much. May God bless you


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Can your laptop connect to other monitor?

RAJU_MSC_MATHEM
Zen Master I
latifah.latif

https://zentalk.asus.com/en/discussion/comment/154186#Comment_154186

Can your laptop connect to other monitor?


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Yes I can able to connect to more monitors.
one by VGA port.
one by HDMI port

latifah_latif
Star I
RAJU.MSC.MATHEMATICS

https://zentalk.asus.com/en/discussion/comment/154187#Comment_154187

Yes I can able to connect to more monitors.

one by VGA port.

one by HDMI port


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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.

RAJU_MSC_MATHEM
Zen Master I
latifah.latif

https://zentalk.asus.com/en/discussion/comment/154239#Comment_154239

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.


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sorry I have different model laptop. X542UQ