Can't change brightness windows 7

No, sfc /scannow unfortunately did not find anything wrong

There is nothing wrong with the screen, I can change the brightness using the function keys, just not in Windows, just wondering why you cannot change brightness through Windows as all my other laptops can. If it was an external monitor, than I wouldn't even care as Windows might not be able to change your monitor screen as there is already a built-in brightness option in the monitor, but on a laptop, Windows should be able to change the brightness.

Laptop displays dim as they age.  The only way to fix that is to replace the screen which is not economically sensible.  You can however, plug in an external monitor.

Could also be a System file issue if control panel doesn't have the slider for brightness.

To scan your PC for missing system files, go to Start, type CMD right click and click Run as Administrator.

Once in CMD type sfc /scannow

This will scan the system for missing files and try to repair them.

If the sfc utility cant repair or find missing files, and if the slider is so important, you can re-install Windows 7.

I would back up my files, then re-install.

Send back the results of the sfc command either in text, or in a screenshot

Have a great Friday,

Aiden

Not sure, I found this laptop in a farm as refurbished, it came with Windows Vista but refurbished as Windows 7, so I put a hard drive in it and Installed Windows 7 and entered the product key.

System Summary:

OS Name Microsoft Windows 7 Home Premium

Version 6.1.7601 Service Pack 1 Build 7601

Other OS Description Not Available

OS Manufacturer Microsoft Corporation

System Name DELL

System Manufacturer Dell Inc.

System Model Latitude D630

System Type x64-based PC

Processor Intel(R) Core(TM)2 Duo CPU T7250 @ 2.00GHz, 2001 Mhz, 2 Core(s), 2 Logical Processor(s)

BIOS Version/Date Dell Inc. A17, 04/01/2010

SMBIOS Version 2.4

Windows Directory C:\Windows

System Directory C:\Windows\system32

Boot Device \Device\HarddiskVolume1

Locale Canada

Hardware Abstraction Layer Version = "6.1.7601.24545"

User Name DELL\Admin

Time Zone Eastern Standard Time

Installed Physical Memory (RAM) 2.00 GB

Total Physical Memory 1.99 GB

Available Physical Memory 155 MB

Total Virtual Memory 3.98 GB

Available Virtual Memory 946 MB

Page File Space 1.99 GB

Page File C:\pagefile.sys

Display:
Name Mobile Intel(R) 965 Express Chipset Family

PNP Device ID PCI\VEN_8086&DEV_2A02&SUBSYS_01F91028&REV_0C\3&37C8FF5D&0&10

Adapter Type Mobile Intel(R) 965 Express Chipset Family, Intel Corporation compatible

Adapter Description Mobile Intel(R) 965 Express Chipset Family

Adapter RAM 384.00 MB (402,653,184 bytes)

Installed Drivers igdumd64.dll,igd10umd64.dll,igdumdx32,igd10umd32

Driver Version 8.15.10.1930

INF File oem2.inf (i965GM0 section)

Color Planes Not Available

Color Table Entries 4294967296

Resolution 1440 x 900 x 60 hertz

Bits/Pixel 32

Memory Address 0xF6E00000-0xF6EFFFFF

Memory Address 0xE0000000-0xEFFFFFFF

I/O Port 0x0000EFE8-0x0000EFEF

IRQ Channel IRQ 16

I/O Port 0x000003B0-0x000003BB

I/O Port 0x000003C0-0x000003DF

Memory Address 0xA0000-0xBFFFF

Driver c:\windows\system32\drivers\igdkmd64.sys (8.14.10.1930, 5.89 MB (6,180,832 bytes), 23/09/2009 8:23 PM)

Name Mobile Intel(R) 965 Express Chipset Family

PNP Device ID PCI\VEN_8086&DEV_2A03&SUBSYS_01F91028&REV_0C\3&37C8FF5D&0&11

Adapter Type Not Available, Intel Corporation compatible

Adapter Description Mobile Intel(R) 965 Express Chipset Family

Adapter RAM Not Available

Installed Drivers igdumd64.dll,igd10umd64.dll,igdumdx32,igd10umd32

Driver Version 8.15.10.1930

INF File oem2.inf (i965GM1 section)

Color Planes Not Available

Color Table Entries Not Available

Resolution Not Available

Bits/Pixel Not Available

Memory Address 0xF6F00000-0xF6FFFFFF

Driver c:\windows\system32\drivers\igdkmd64.sys (8.14.10.1930, 5.89 MB (6,180,832 bytes), 23/09/2009 8:23 PM)