4 unknown devices in Windows 7 RTM 64 on dv7

before proceed with the steps to solve your problems make sure you check the ID, the ID for dv7 i have is ACPI/HPQ0004 so it is the:

ProtectSmart Hard Drive Protection
Download

this will solve 3 unknown device and the other one left is:

HDD protection feature:
Download

HP dv6500t ICH8M LPC Interface Controller - 2815 problems

If you found there are unknown driver with ICH8M LPC Interface Controller - 2815 on the device manager follow this steps:

1. Download this drivers: HP Quicklaunch Button

and above that you mught require to install .netframework 2.0 before install the Quicklauch. Another tips is make windows XP SP2 works better with drivers for laptop model which design for windows Vista.

Unknown Base System Device Windows 7 in Compaq CQ

So if you finish installing windows 7 you'll find most of the drivers installed automatically but if you see unknown base device with yellow marks on device manager it is the card reader driver:

Download

right click and select run as administrator. install and done!

Webcam Crash Problems MSN Messenger (SOLVED)

Before continue reading the entire post, I would like to stress this post is specific for Compaq laptop but you can also apply for other type if you know to choose your driver. I made this post because i got an email asked about Webcam crashed using MSN Messenger and she report back that its work for her. SO here is my original reply to her email and hope help you too, if you still having trouble( Especially different models) leave your comments.

here some suggestion that may help you:

first update your youcam driver:
http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-55812-1&lc=en&dlc=en&cc=us&os=2093&product=3675225&lang=en

restart and if it still crash follow next step:

first download and istall the update below:

windows vista service pack 1 update: http://www.microsoft.com/downloads/details.aspx?FamilyID=90E2942D-3AD1-4873-A2EE-4ACC0AACE5B6&displaylang=en

then web quickplay update:
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=321957&prodSeriesId=3752105&prodNameId=3786352&swEnvOID=2093&swLang=13&mode=2&taskId=135&swItem=ob-70555-1

Vista Recovery Disk Information

This might be helpful if you need recovery disk for your windows vista.

It looked like Microsoft was finally going to do the right thing. Beta versions of Vista SP1 came with a modern equivalent of the old Windows Boot Floppy--a Start Menu option called "Create a Recovery Disc" that burned a Windows PE-based emergency CD. Alas, Microsoft removed that feature before SP1 shipped, but not before NeoSmart turned the disc into an .iso file and made it available on their site.
Running on the Vista version of Windows PE, the Recovery Disc is basically a Vista installation disc minus the install files. It even has an "Install now" button that asks for a Product Key before failing. You're better off clicking the Repair your computer button. Among its Vista-only options are a tool for diagnosing and fixing startup problems, a version of System Restore that uses restore points on the hard drive, the restore portions of Vista's backup program, and a memory diagnostic tool.
Note: This link takes you to an external Web site, where you can download the latest version of the software.
--Lincoln Spector

Fix ahcix64 file corrupted problems

This post is base on itapac crew comments after he failed 5 times to install windows XP using slipstreaming method and success after he knew the the problems make the process failed.

here is the original comments or you can read the original comments here.

Hye guys,

I'm using Compaq Presario CQ40-406au (AMD). I need to downgred my OS from Vista to XP and everybody in here really helping me. Thanks. I just want to share my problem so maybe next time if there is anybody else getting same problem as mine can solve it easily.

First time i create bootable XP using nlite it's failed. Error "...ahcix64 file corrupted..". My mistake here is selecting x64 from my sata driver. I'm suppose to select x86. But after i realize my mistake, i tried to create another bootable cd and selecting x86 but still the same error appeared. After wasting 5 of my dvd, i realize that i'm not suppose to use the same folder of win xp that i copied to my harddrive because nlite will copy and change all the setting effecting the original file of windows xp that i copied before.

Use the fresh file of winxp if u want to create another bootable cd. I already installed Xp in my compaq cq40-40au and i really want to share this with everybody. :)

The main thing i want to stress after read this comment is.

1. When slipstreaming - any guide you found on the internet will tell you to create a new folder to store the windows XP files, so when you slipstream and failed, you should create another folder, don't load any previous session, create a new folder and repeat the same method.

2. The most important is to know your windows XP bootable CD/DVD, either 32-bits or 64-bits.
If 32-bits use AHCIX86 and if 64-bit use AHCI64, both type of opereating system is different even both are windows XP. If you don't know if it is 32-bit or 64-bits you can find further information here:
http://en.wikipedia.org/wiki/Microsoft_Windows

7 Unknown Devices Compaq Windows XP Driver

There are a lot of driver missing when downgrade from xp to vista and 7 unknown devices is quite a popular topic discussed. And there are also other driver such as co processor. When downgrading for me the essential driver is chipset, sound, vga, wireless, bluetooth and card reader. So what to do with missing driver, for me if nothing wrong with your laptop no need for you to update the driver because you already have the essentials drivers.

Direct link
Download

Extract the files and  right click on machine.inf select install.

11 ways to enhance your notebook battery life longer

Here i blog the post by http://techrena.blogspot.com about how to enhance your laptop battery, if you find this article helpfull share with your friends and give credits to the original blog.

1. Do ‘Defragment’ Regularly.Defragmentation speeds up your Hard disks thus reducing some extra burden on your notebook batteries.
2. Dim your notebook display screen.You can turn down the brightness of your notebook’s display by using Function Keys[In most of the modern laptops].
3. Don’t run a ‘virus scan’ unnecessarily when you are running on battery,virus scan does add extra load on the CPU so as on the batteries.
4. Monitor your battery performance on a regular basis.
5. Clean your battery Contacts:It’s always suggested to take out your battery once in two or three months and clean the metal contacts with cloth moistened with rubbing alcohol.
6. Choose ‘Hibernate’ over ‘Standby’.Although Standby mode does save some power but it’s nowhere near when compared to ‘Hibernate’ mode,so opt for ‘Hibernate’ instead of ‘Standby’.
7. Turn off laptop display when you are away from it for shorter duration.You can make use of external software like m_off to do this for you.
8. Maintain Charging-Discharging balance.Once you completely charge your battery,allow it to discharge at least once in a week.
9. Turn off Bluetooth,IR & wireless radios when running on battery if you no longer need them.
10. Don’t attach USB devices[if you don’t really need them] attached to your notebook when running on battery.USB devices like iPod if kept attached to your notebook[for charging],are sure to drain your battery quickly.
11. Make wise use of the ‘Power Options’ available in the ‘Control Panel’ of your windows.

System restore

If you wish to turn back time and return your windows into a state where it still working properly?
System Restore can return your PC's system files and programs to a time when everything was working fine, potentially preventing hours of troubleshooting headaches. It won't affect your documents, pictures, or other data.

What System Restore Can Do?
1. Undo any installed updates
2. Undo any upgrade
3. Undo changes you make and does not infecting your files and documents.

What Files Are Changed During System Restore?
System Restore affects Windows system files, programs, and registry settings. It can also make changes to scripts, batch files, and other types of executable files created under any user account on your computer.

Windows XP:
Start - all program - accescories - system tool -system restore

 In windows xp you will have 2 option to restore or to create. Select restore to restore your computer into previous state and you will see there dates you can select with description of what changes have been made on that time. Select the preferable date dan continue until it reboot and finish restoring your computer. You can also undo the restore if you not satisfy with the result.


Windows Vista and Windows 7
Start and on the search box type system restore. Select system restore form the result.

 Similar with windows XP, there are several dates you can choose from, and the will be description what changes on what time. Select the date and click next to continue with system restore.

Windows 8:
On start screen select restore point and on the search result select setting the select create restore point and you will be brought to the System Protection tab of the System Properties control panel.