Windows 10: W10 Partition shrinking/expanding

Recently expanded my 'System Reserved' partition in order to install W10 1903 release.

However, expanded it by far too much, so now need to shrink and reallocate to may main Drive C .

If I shrink, will the newly unallocated space automatically be placed next to my Drive C (so as to allow me then to extend my main Drive C partition?

:)

 

undo partition shrink

Hi,

If you accidentally shrink the volume of your SSD partition, there is an option to extend the volume as well. To extend the volume of your SSD partition, follow the steps below:

• Press Windows key + X on your keyboard and select Disk Management.
• Right-click the partition that you want to expand and click Extend Volume.
• Select the amount of space that you want to extend.

Keep us in the loop with the result.

 

undo partition shrink

Hi, disk management has limitations on the size of shrinking partition. Also extending partition with Disk Management, you must have unallocated space next to the partition which you need to expand. Otherwise, the button is grayed out.

I suggest you use a third party free disk partition manager to help you to
extend the partition.

 

Questions re: Expanding System Partition, Shrinking Windows Partition


Hello Everyone,

Hopefully I'm not duplicating a thread I haven't found. I'm running Windows Home v. 1803, Build 17134.829 on a Lenovo IdeaPad laptop. Windows Update failed to install the July CU (KB4507435) for v. 1803 with error code 0x800f0922 (possible cause: too-small system partition). This is the first time I've received this code so checked size of system partition and saw it is only 260 MB (screenshot follows):






This is the disk organization as provided by Lenovo; as you can see I have lots of free space but no unallocated space. If I need unallocated space to expand the system partition, I'll have to get it by shrinking the Windows partition. I have a few questions about this procedure:

1. Are there any special considerations for shrinking the Windows partition, e.g., defrag the disk first?
2. Must the unallocated space reside immediately next to the system partition to be considered contiguous? If shrinking the Windows partition places the unallocated space anywhere else, will I need a third-party disk management tool to enlarge the system partition?

I'm sure I'll need to resolve this before trying to update to v. 1903, which is now being offered, and I'll have to do the same to my husband's HP (don't want to mess up that one), so really need to have my ducks in a row before getting started.

Thanks in advance for your help.