Personal computing discussed
Moderators: renee, Flying Fox, Ryu Connor
churin wrote:How can I reset W10(v.1803) which cannot boot?
churin wrote:I clean installed W10 Pro-v.1607 on 100GB partition in 250GB SSD. I do not remember whether the partition was created before the installation or during the installation. The system was updated up to v.1803. I noticed there there was 450MB partition following the 100GB system partition, which I did not remember when and how it was created. I deleted the 450MB partition and enlarged the system partition using the third party utility(Partition Master), thereafter the system became not bootable.
I tried the repair option after booting from USB W10 install media but found that reset option was not available.
If the system is repairable, that would be more desirable but I could not any way to do it.
LocalCitizen wrote:- do a low level backup / clone of the 100G partition
- delete and recreate and 100G partition. make it 100G + 500M in size
- reinstall windows, let it recreate the 500M system partition again
- restore the clone image back to the 100G partition
that should do it
deleting that 500M partition was a big nono. it's a lot of work recreating it
Ryu Connor wrote:Boot into WindowsPE
Confirm that the C: drive hold the Windows directory.
bcdboot c:\windows
This is the sloppy fix, but it should work.
DancinJack wrote:You deleted the Recovery and System partitions that Windows creates when it installs. Do not do this. Was 450MB really that important?
You're likely going to have to do a clean install.
DancinJack wrote:Goodness gracious man, just reinstall Windows on the 100GB partition again. WIndows will take care of the formatting. No need for all this work.
churin wrote:Thank you all for your replies.
I tried the above suggestion and got "Boot files successfully created" message after executing the suggested command. But the Windows 10 is still no boot.
This is a desirable solution if it works since it avoid wiping out installed application softwares. Any further suggestions?
TheRazorsEdge wrote:I've never let Windows (up to W8) create its funny partitions. Though, never used Bitlocker.all versions of Windows after XP create a boot partition. The size ranges from 150-500 MB depending on the OS. It is not optional. In some cases, you may be able to shrink it a bit, but that's not a good idea either. Some features like Credential Guard, Bitlocker, etc require space on that partition if they are enabled.
meerkt wrote:TheRazorsEdge wrote:all versions of Windows after XP create a boot partition. The size ranges from 150-500 MB depending on the OS. It is not optional. In some cases, you may be able to shrink it a bit, but that's not a good idea either. Some features like Credential Guard, Bitlocker, etc require space on that partition if they are enabled.
I've never let Windows (up to W8) create its funny partitions. Though, never used Bitlocker.
meerkt wrote:TheRazorsEdge wrote:I've never let Windows (up to W8) create its funny partitions. Though, never used Bitlocker.all versions of Windows after XP create a boot partition. The size ranges from 150-500 MB depending on the OS. It is not optional. In some cases, you may be able to shrink it a bit, but that's not a good idea either. Some features like Credential Guard, Bitlocker, etc require space on that partition if they are enabled.
MOSFET wrote:Sorry to be a little OT. I had a situation recently where the recovery/boot partition suddenly had a drive letter attached to it, which was not removable from Disk Management. Fortunately, it received drive letter D: even though C: lay beyond D: on the same drive. Windows booted fine into C:, but would incessantly b!tch about low space on D:
Tangent complete.
Waco wrote:Reinstall from scratch. It's the easiest method to ensure you don't have trouble in the future. Also, stop screwing around with things you don't understand unless you have a good backup strategy first.
meerkt wrote:I've never let Windows (up to W8) create its funny partitions. Though, never used Bitlocker.
diskpart
list disk
select disk 0
list volume
TheRazorsEdge wrote:The Windows installer will create those partitions automatically. Even if you pick a blank hard drive and click through the installer without creating any partitions.
srg86 wrote:I think there seems to be a lot of confusion here about these partitions.
TheRazorsEdge wrote:You're wrong. I don't know what else to tell you.
The Windows installer will create those partitions automatically. Even if you pick a blank hard drive and click through the installer without creating any partitions.
Ryu Connor wrote:Meerkt has likely done this, he's fairly technical, it aids him in his adventures.