Extending hard disk volume of a VMware virtual machine. Solving error: Failed to expand the disk “C:\My Vurtual Machines\windows 8\Windows 8.vmdk”: One of the parameters supplied is invalid (0x100003e80).

1. Delete all snapshots. (Make sure you have backups)

2. Shutdown the Virtual Machine and use VMWware-vdiskmanager utiltiy (comes with VMWare Workstation) to extend partition.

Example: if you want to increase OS drive of your Windows 8.0 virtual machine (located at “D:\My Vurtual Machines\windows 8\Windows 8.vmdk” ) by 15GB then use following commmand:

C:\Program Files (x86)\VMware\VMware Workstation>vmware-vdiskmanager.exe -x 45Gb “C:\My Vurtual Machines\windows 8\Windows 8.vmdk”

3. If you are attempting to extend the OS drive, you can use some 3rd party partitioning software (such as Partition Magic or Paragon Partition Manager).  If you are increasing the size of a data-drive/partition,  you can use DISKPART commands in your Virtual Machine.

Example: for extending OS drive, use the 3rd party partitioning software, and allocate the unallocated space as “primary”: then merge it with ‘basic’ C-drive.

If you get error:

Failed to expand the disk  “C:\My Vurtual Machines\windows 8\Windows 8.vmdk”: One of the parameters supplied is invalid (0x100003e80).

Possibly, you have not created the vmdk file as of fixed size, instead selected option that would let the hard disk volume grow when become larger. So, there might be multiple .vmdk files, and therefore the vmware-vdiskmanager causes the above error.

Solution:

For this type of vmdk,

Select “Edit virtual machine settings” from VMWare Workstation. then, Hard disk > Utilities > Expand : now expand the hard disk to 45GB

After this, run the virtual machine. Right click the  Computer or My Computer: Select “Manage”

In “Computer Management”: select “Disk Management“: It will show 45GB as unallocatted volume.

Right click your OS-drive (C Drive) and select “Extend volume” and extend it ti complete 45GB.

That’s  all!!

Sometimes my Ubuntu laptop doesn’t detect my ADSL Modem based WiFi Access Point

http://www.technologydwell.com/2016/01/sometimes-my-ubuntu-laptop-doesnt.html

I am having dual OS (Windows & Ubuntu) in my Laptop, and a ADSL Modem based WiFi Access Point.
The WiFi Access Point always  works fine with Windows, however with Ubuntu sometimes (or infact most of the times) it is not being detected. Further, the Ubuntu always shows other surrounding WiFi networks.

Reason: The possible reason may be conflict of Channel or Frequency with other WiFi networks.

Solution:
Try to change following settings in your WiFi Access Point:
1. Change Channel from Auto to a fixed channel number. (for example: 07)
2. Change Channel bandwidth to 20Mhz to 20/40Mhz.
3. Restart the Access Point.

Windows 10 Black Screen problem: After upgrading from Windows 7 to Windows 10 screen goes to black. No cursor or pointer is visible.

Detailed blog at: http://www.technologydwell.com/2015/08/windows-10-after-upgrading-from-windows.html

After upgrading from Windows 7 to Windows 10, everything worked smoothly. However, suddenly after 10-15 minutes, the screen went blank and black (without any cursor or pointer). On forceful (button) reboot, the problem persists.

Reason: If everything was OK during upgrade, then one possible reason may be the Display Driver (provided by the OEM such as Intel) Problem. The current version of Display Driver may be having issues with the Windows 10 environment,

For example: Windows 10, tries to install the device drivers of second generation Intel Graphics Adapter, which are non-compitable.

Solution:  (**** go through the steps mentioned below. Final Solution is in my last Update (Jan 2016))

Simple solution is to run the System in Safe Mode and Uninstall the Device Driver.

this solution will be temporary, as the Windows 10 will look for updates of the display driver also and whenever it may update the display driver to the same problematic driver. As a workaround, you may have to  disable the auto-update of device drivers.

Note: Disabling auto updates of device drivers is just a workaround, not a recommended practice. Whenever the patch or stable version of the display driver is released, you should enable the auto-updates of the device drivers.

Steps:

  1. Switch off Internet Modem or device.
  2. Shutdown the system using Power button.
  3. Power-on the system. Keep pressing F8 or F12/F11 to enter to Repair screen.boot options
  4. Windows will ask you to choose an option. Press Troubleshoot.
  5. In the Troubleshoot, click Advanced options.
  6. In the Advanced options, click Startup Settings.
  7. You will be informed that you are about to restart in order to change several Windows options, including enabling Safe Mode. Click Restart.
  8. On restart it will display nine startup settings, including Safe Mode. Press 4 of F4 for Safe Mode.
  9. System will restart in Safe Mode.
  10. Login and navigate to Control Panel > Programs & Features > Uninstall the Intel* Graphics Driver

   

           *or other 

  1. It will ask to restart the system. Click restart
  2. System will restart into Windows 10.
  1. Now, to prevent Windows 10 from updating/restoring the same problematic Display Driver”
  1. Go to start menu: Settings and search Advanced System Settings:

. ii. Open Click the Advanced System Settings  and select Hardware tab and click Device Installation Settings:

iii. Under Device Installation Settings, click on No, Let me choose what to do, then select Never Install Drivers from Windows Update:

  1. Save Settings, a system reboot is required for the changes to take effect.
  1. Now, you can switch on your Internet device or modem.

That’s all!

——————————————————————————————-

Update:

Windows may still automatically downloads and installs Drivers.

To get rid from the problem, turn ON “Download over metered connection”:

1) Open Settings

2) Select Devices

3) Select “Printers & Scanner” and use the slider to turn ON “Download over metered connection”

4) Similarly, select “Connected Devices” use the slider to turn ON “Download over metered connection”

——————————————————————————————-

Update (Jan 2016): With new windows 10 update, the screen again went black.

On exploring through the steps discussed above, I found that the non-supportive Intel* Graphics Driver was installed again by the update. Further, noticed that Microsoft has changed the below feature/option:

old option

by :

new driver update option

SO, NOW WE CANNOT PREVENT WINDOWS FROM DOWNLOADING DEVICE DRIVERS.

 

———————————–

——————————————————————————————-

Update:

Windows may still automatically downloads and installs Drivers.

To get rid from the problem, turn ON “Download over metered connection”:

1) Open Settings

2) Select Devices

3) Select “Printers & Scanner” and use the slider to turn ON “Download over metered connection”

4) Similarly, select “Connected Devices” use the slider to turn ON “Download over metered connection”

——————————————————————————————-

Update (Jan 2016): With new windows 10 update, the screen again went black.

On exploring through the steps discussed above, I found that the non-supportive Intel* Graphics Driver was installed again by the update. Further, noticed that Microsoft has changed the below feature/option:

by :

SO, NOW WE CANNOT PREVENT WINDOWS FROM DOWNLOADING DEVICE DRIVERS.

——————————————–
Feb 2016:
update!!!
Finally got this solution:

Boot the computer in Safe Mode:
i.  Go to start menu: Settings and search Advanced System Settings:
ii. Open Click the Advanced System Settings  and select Hardware tab and click Device Manager Settings

iii. Disable the Display Driver

iv. Restart the computer!