Windows 10: Tm.sys - 0xc0000221 Error

  1.    21 Jun 2017 #1

    Tm.sys - 0xc0000221 Error

    This tower was upgraded to 10 (from 7) about 18 months ago and has performed admirably, but a few days ago I started getting a load failure message when I booted. It took me to the Troubleshoot screens where I found that Startup Repair could not identify or correct the problem.

    I then went to the command prompt and ran a chkdsk which found no errors. I then ran sfc scannow which found no integrity violations. I then ran both fixboot and fixmbr commands which completed successfully. Rebooting showed that nothing had changed. I then went to the system Reset which retains your personal files but resets Windows. That eventually gave me the following 'The operating system couldn't be loaded because a required file is missing or contains errors'. Underneath that it gave me the file name of tm.sys and the error code of 0xc0000221.

    A forum search on tm.sys returned nothing. That seems weird - nobody else has ever had this error or had a problem with that file?
      My ComputerSystem Spec

  2. bro67's Avatar
    Posts : 4,893
    Mac OS High Sierra 10.13.5
       21 Jun 2017 #2

    It is a Transaction Manager Driver. Because you upgraded from 7 to 10, you will have to do a repair install. It is suggested to do a clean install for Windows 10 not a upgrade, since any problems carried over from a previous install can cause the new version of Windows to start puking errors.
      My ComputerSystem Spec

  3.    27 Jun 2017 #3

    (For some reason I do not seem to be able to 'Reply with quote' - when I hit the quote button I just get the never-ending circle. It happens on 2 different computers with 2 different browsers and on both Windows 7 and 10)

    Repair install, you say? How does one accomplish that on a W10 computer that won't start?

    Anyhow, I used the 10 DVD and the command prompt to save multiple folders and then reinstalled. The problems created from that will be posted to the Installation and Upgrade subforum(264 Viewing)

      My ComputerSystem Spec


Related Threads
Hi guys, first time posting as today as at 7:00~ i got the error code Error Code: 0xc0000221. I personally am not experienced with computers so i have decided to post this thread in the hope someone will help me. The system says:...
Windows 10 0xc0000221 ntoskrnl.exe error in BSOD Crashes and Debugging
Getting the BSOD when I tried to reset my PC after moving all my data to external hard disk. All I see is this and four options: Recovery Your PC/Device needs to be repaired. The OS couldn't be loaded because the kernel is missing or...
I am getting a BSOD (Blue Screen Of Death) Startup repair couldn't repair my pc and when I tried to reset the pc wont repair the problems used all the troubleshooting tools which didn't work. Won't let me boot into safe mode. After I go though all...
Error Code: 0xc0000221 in General Support
Hi guys, First time user here so not sure what I should put in the thread. I am basically in a bit of a shit situation as my laptop (Acer Aspire) has been quite laggy lately (Windows 10) and I just had junk everywhere so I decided to wipe...
I am on my 4th SSD in my Windows 10 laptop that has been getting SMART error 2000-0151. We have replaced the motherboard, the SSD, and the connector cable between the SSD and motherboard. One thing is that I've been using Macrium Reflect to clone...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 12:21.
Find Us