I want my child to learn the periodic table on my iPad. Could you please suggest a good app?
Neetu Pandey
You cannot go wrong with The Elements by Theodore Gray. Although this app costs about Rs 700, it is money well spent. It teaches you about the building blocks of the universe in a very engaging way with its pinch and zoom functionality and 3D imagery that literally jumps off the screen. . I would recommend it for anyone studying chemistry.
Time to clean up
Ever since I upgraded my PC from Windows 7 Ultimate to Windows 10 Pro, it has become very slow. The PC has 4GB RAM.
Parul Chakravarty
You have to go through a number of steps. First, press Control+Shift +Esc and open Task Manager. Click on the startup tab. Now disable the programs that you do not want to run when you start your machine. Right-click on Adobe Reader, Skype, Chrome browser, and Microsoft Office and choose to disable. These are all good programs but do not need to run at startup. You can also disable iTunes Helper and QuickTime if they are installed in your computer.
There may be a lot of unnecessary files on your hard drive that could be affecting performance. To clean up temporary data and leftover files from Windows Update, you can use the Windows Disk Cleanup Tool or CCleaner (www.ccleaner. com). Also, get hold of a third-party uninstaller such as Revo (www.revouninstaller.com /revo_uninstaller_free_download. html) and get rid of programs you do not need. This utility is better than the built-in Windows uninstaller in Settings or Control Panel.
Apple abroad
I would like to buy an iPhone Xs Max during my next trip to the US. What model should I buy to ensure that both the e-SIM and normal SIM work in India?
Ajit Kundu
The iPhone Xs Max model that will work with 4G Indian operators without a hitch is A2101 (GSM). In the US the model sold is A1921 (GSM). But unlocked iPhone models do support 4G LTE networks outside the country of purchase if you use a valid SIM from Vodafone, Airtel or Jio. You should find out more from the carrier you want to use before you buy the iPhone. Currently, only Airtel and Jio support e-SIM.
Phone disconnect
I have a Lenovo Windows 10 laptop. But I cannot connect any of my Android phones to the laptop to transfer files. Why does it happen and what should I do?
Nihar Sarkar
Update your computer to the Windows 10 October 2018 Update, and use the Your Phone app, as mentioned in this column last week. The computer and phone should be on the same WiFi network.
Stuck at startup
My Windows 7 laptop gets stuck at startup with the message ‘Loaded successfully classpnp.sys. The next one driver file to be loaded is cdrom.sys.’
Sandip Dutta
For some reason, the CDROM driver is failing to load. Unplug the CDROM from the laptop and it will start up normally. This problem has happened in the past with many other laptops.
Checksum error
My Compaq Presario CQ61 laptop with Windows Vista shows a ‘checksum error’ while starting.
R. Sarkar
The most common cause is a malfunctioning CMOS battery, due to which the motherboard is not receiving enough power to function properly. Get the battery on the motherboard replaced. If the battery is okay, check for viruses.
I want my child to learn the periodic table on my iPad. Could you please suggest a good app?
Neetu Pandey
You cannot go wrong with The Elements by Theodore Gray. Although this app costs about Rs 700, it is money well spent. It teaches you about the building blocks of the universe in a very engaging way with its pinch and zoom functionality and 3D imagery that literally jumps off the screen. . I would recommend it for anyone studying chemistry.
Time to clean up
Ever since I upgraded my PC from Windows 7 Ultimate to Windows 10 Pro, it has become very slow. The PC has 4GB RAM.
Parul Chakravarty
You have to go through a number of steps. First, press Control+Shift +Esc and open Task Manager. Click on the startup tab. Now disable the programs that you do not want to run when you start your machine. Right-click on Adobe Reader, Skype, Chrome browser, and Microsoft Office and choose to disable. These are all good programs but do not need to run at startup. You can also disable iTunes Helper and QuickTime if they are installed in your computer.
There may be a lot of unnecessary files on your hard drive that could be affecting performance. To clean up temporary data and leftover files from Windows Update, you can use the Windows Disk Cleanup Tool or CCleaner (www.ccleaner. com). Also, get hold of a third-party uninstaller such as Revo (www.revouninstaller.com /revo_uninstaller_free_download. html) and get rid of programs you do not need. This utility is better than the built-in Windows uninstaller in Settings or Control Panel.
Apple abroad
I would like to buy an iPhone Xs Max during my next trip to the US. What model should I buy to ensure that both the e-SIM and normal SIM work in India?
Ajit Kundu
The iPhone Xs Max model that will work with 4G Indian operators without a hitch is A2101 (GSM). In the US the model sold is A1921 (GSM). But unlocked iPhone models do support 4G LTE networks outside the country of purchase if you use a valid SIM from Vodafone, Airtel or Jio. You should find out more from the carrier you want to use before you buy the iPhone. Currently, only Airtel and Jio support e-SIM.
Phone disconnect
I have a Lenovo Windows 10 laptop. But I cannot connect any of my Android phones to the laptop to transfer files. Why does it happen and what should I do?
Nihar Sarkar
Update your computer to the Windows 10 October 2018 Update, and use the Your Phone app, as mentioned in this column last week. The computer and phone should be on the same WiFi network.
Stuck at startup
My Windows 7 laptop gets stuck at startup with the message ‘Loaded successfully classpnp.sys. The next one driver file to be loaded is cdrom.sys.’
Sandip Dutta
For some reason, the CDROM driver is failing to load. Unplug the CDROM from the laptop and it will start up normally. This problem has happened in the past with many other laptops.
Checksum error
My Compaq Presario CQ61 laptop with Windows Vista shows a ‘checksum error’ while starting.
R. Sarkar
The most common cause is a malfunctioning CMOS battery, due to which the motherboard is not receiving enough power to function properly. Get the battery on the motherboard replaced. If the battery is okay, check for viruses.
