This is a very interesting decision by Microsoft and I fully support it, this time users will be able to pay less and to choose only applications that they need instead of paying for the whole package and not using it. Disk Write Error in Steam is thrown at you while you try to download or update the game in your library. If you are an unfortunate user of Steam that has encountered this error do not sweat, the error is usually tied to permission in windows or file corruption and not to hardware issues and can be easily resolved.
In this guide, we will go through solutions for this specific error and it is advisable to go through solutions as they are presented since they go from the easiest and most common issues.

The easiest and quickest way of resolving this issue is just a simple restart of the Steam client. Just completely quit Steam and they run it again, if this has not solved the issue try rebooting your PC. In most cases, this can solve the issue since this error is known to be introduced with some communication issues with OS (Windows)
Disk write permissions could also cause this error because if by any chance the Steam library folder has been set or changed to the read-only client would be unable to write anything in it. To easily solve this issue completely exit the Steam client and rerun it as administrator. Just right-click on it and select Run as Administrator. If this has solved your issue run Steam always as an administrator.
To run always as an administrator right click on the steam executable, go to properties, and inside properties go to the compatibility tab. In the compatibility tab check run as administrator and click on OK.
If for any reason cache has become corrupted there is a big chance that this might be an issue why there is a disk drive error in Steam. To clear download, cache goes into your client, and on top drow down menu click on steam. Find and open settings and inside go to the downloads tab. Locate a clear download cache and immediately you will be prompted to restart Steam. After restart, you will be asked to login into steam and the issue with disk write should be gone.
Library folder issues can also be the source of disk write annoyance so let's repair them. Click steam in the top left and go to the settings. Locate and click on Downloads and then go to Steam library folders. You will be here shown all disk drivers you are using for steam games and all of the games that are downloaded.
Select the game you are getting errors with and click on three dots on the far right. From the menu choose the repair folder option. Take note that the more games you have installed, the more time the repair process will need.
Sometimes the issue is not at your end at all, servers can experience problems and outrages and this can directly reflect at your end with a disk write error. If any of the previous solutions have not resolved the issue this is the next logical step to try. If the server is facing issues then changing the download server will resolve the issue at your end.
Click on settings in the top drop-down menu and then click on the Steam library folder. Find the downloads page and then click on download region, Choose another server than one nearest to your location since that's what will Steam choose by default.

This is a very interesting decision by Microsoft and I fully support it, this time users will be able to pay less and to choose only applications that they need instead of paying for the whole package and not using it. After upgrading to Windows 10 operating system from Windows 7 or Windows 8/8.1, a lot of Windows users are complaining about the Windows setup in a continuous reboot loop. The computer would just keep on rebooting every time the machine is booted and this incites frustration for a lot of Windows users.
Error CausesWhen Windows launched the third update for Windows 10, users trying to upgrade to Windows 10 encountered an endless reboot loop problem. The computer will crash repeatedly. The KB3081424, which is a roll-up of bug fixes of Windows 10, continuously fails once you start the update process and then triggers a message showing: “We couldn’t complete the updates, undoing the changes.” The undoing process will then cause a system reboot mandatorily.
Once you log back on your computer again, the Windows 10 update will try to reinstall KB3081424. You will not be able to stop the update which will cause your Windows setup in a continuous reboot loop.
The KB3081424 will not be successfully installed since if it fails for the first time, that initial failure can be detected to create a bad entry in your Windows 10 registry. This will then prevent your subsequent attempts to reinstall KB3081424 to make it work correctly.
In order to fix the problem of Windows 10 setup in a continuous reboot loop, there are a few methods you can try. Try following these simple steps and you’ll be able to get rid of the problem.
Note: If you’re not highly confident to solve this issue on your own, it is highly recommended to consult an authorized computer technician who would be knowledgeable enough to fix the issue for you. In addition, you can also use a system optimizer to resolve the issue.
Microsoft Windows released an updated fix for the Windows setup in continuous reboot loop problem. You can try fixing the issue through Windows Update.
Before KB3081424 attempts to install again, you can try doing this solution:
Another thing you can try to solve the Windows setup in continuous reboot loop problem is to perform a startup repair from a working computer.
NOTE: You must do this quickly since the BIOS loads rapidly.
“The selected disk is not a fixed MBR disk. The ACTIVE command can only be used on fixed MBR disks.”This kind of error only occurs when you try to activate a disk partition on a UEFI system partition. However, the command works only if your computer is based on BIOS/MBR. The UEFI method has no concept of the active partition and since you have a UEFI system, the disk type is GPT instead of MBR. To simply put it, your BIOS needs the MBR disk type while the UEFI needs the GPT disk type. To fix the “The selected disk is not a fixed MBR disk when trying to use the DISKPART utility” error, there are various potential fixes you can try. You might have to disable Secure Boot, convert the disk to MBR or fix the Boot Manager. For more instructions, follow the options provided below.