# Running post-alignment QA/QC After alignment has completed, we can view the quality of alignment by performing post-alignment QA/QC. * Click the **Aligned reads** data node * Click **QA/QC** inthe task menu * Click **Post-alignment QA/QC** from the QA/QC section of the task menu (Figure 1)

*Figure 1. Invoking Post-alignment QA/QC*

A Post-alignment QA/QC task node will be generated (Figure 2).

*Figure 2. Post-alignment QA/QC task node*

* Double-click the **Post-alignment QA/QC** task node to view the task report Similar to the Pre-alignment QA/QC task report, general quality information about the whole data set is displayed and sample-level reports can be opened by clicking a sample name in the table. The first two graphs in the report (Figure 3) show the alignment breakdown and total reads in each sample.

*Figure 3. Alignment statistics for the data set*

From these graphs, we can see that more than 95% of reads were aligned, but the total number of reads for each sample varies. Normalizing for the variability in total read counts will be addressed in a later section of the tutorial. For more information about the graphs and information presented in the Post-alignment QA/QC task report, see the [Post-alignment QA/QC](https://help.connected.illumina.com/partek/partek-flow/user-manual/task-menu/qa-qc/post-alignment-qa-qc) user guide. ## Additional Assistance If you need additional assistance, please visit [our support page](http://www.partek.com/support) to submit a help ticket or find phone numbers for regional support.