@InvoiceTemple said in Why is my computer running so slow?:
Over time, PCs collect “digital lint.” The most common culprits are?
Sorry not Windows its Mac
Why is my Mac so slow (and the fan so loud)?
@InvoiceTemple said in Why is my computer running so slow?:
Over time, PCs collect “digital lint.” The most common culprits are?
Sorry not Windows its Mac
Why is my Mac so slow (and the fan so loud)?
Over time, PCs collect “digital lint.” The most common culprits are?
If the cleanup script didn’t provide enough space, you’ll need to manually resize the partition. Since Windows Disk Management cannot extend the EFI (System) partition, you must use a third-party tool.
As of January 2026, here are the most reliable free tools for this specific job:
This is the “go-to” for most Windows users. It is very visual and easy to use for beginners.
If your partition is so full that other tools error out, DiskGenius is excellent at handling “clogged” system sectors.
Most of these tools work the same way. Here is the general workflow to fix error 0x800f0922:
On many Windows 11 systems, there is a tiny 16MB “Microsoft Reserved” (MSR) partition sitting between your EFI and your C: drive.