My Windows Vista machine for some reason is checking for updates and it's been sitting there checking for updates for 2 hours and nothing has changed. It is Windows Vista Ultimate x64. I installed about 2 updates on it that are supposed to fix this problem but nothing has fixed it. I tried a few 3rd party programs to see if it could install the updates. The Vista installation has almost no updates....
Do you have Vista Service Pack 2 (SP2) installed, and do you have the latest Windows Update Agent (C:\Windows\System32\wuaueng.dll) v7.6.7600.256 (released June 2012)?
If yes to both questions then see post # 8 in DickN's recent thread Last successful 64-bit Vista update was 8/6/2016, hangs at "Checking..." and let us know if the step-by-step instructions on page 1 of m#l's thread Updates not working, it has been searching for updates for hours helps speed up your Windows Update. If your Vista SP2 installation "has almost no updates" then you could still be missing some required speed up patches.
Many Vista SP2 users first noticed these "Checking for updates..." hangs in August 2015 (i.e., one month after the official release of Win 10 on 29-Jul-2015) and the problem has gotten progressively worse each month. Post #455 of KellyB56's thread Windows Vista Update Hangs at "Checking For Updates" includes some background information on the cause of these slow Windows Updates, and if you are affected by this problem then running repair tools will not solve your issue.
You can use Microsoft Catalog or WSUS Offline to catch up on Windows Updates.
If you are going to try Torsten Wittrock's WSUS Offline Update tool make sure to download the special extended support release (ESR) v9.2.2 released 03-Jul-2017 for older platforms like Win XP SP3 and Vista SP2. The change log for the latest v11.0.0 at http://download.wsusoffline.net/ notes that this version removed support for Vista SP2.
32-bit Vista Home Premium SP2 * Firefox ESR v52.2.1 * NS Premium v188.8.131.52 * MBAM Premium v3.1.2
HP Pavilion dv6835ca, Intel Core2Duo T5550 @ 1.83 GHz, 3 GB RAM, NVIDIA GeForce 8400M GS
Edited by lmacri, 03 July 2017 - 08:24 AM.